How to find LCM of two numbers in C programming using recursion. Send your Feedback to [email . Check whether multiple clearly divides both number or not. C program to find LCM of two numbers using recursion ... Factorial Program in C Using Recursion | GATE Notes C Program to find LCM of two Numbers using Recursion. HCF and LCM Program in C Using Recursion In this article, you have learned 5 ways in which you can find the LCM of two numbers in C. Knowing the LCM program in C is of pivotal importance. What is the Least Common Multiple (LCM)? Visit to know more about the Factorial Program in C Using Recursion and other CSE notes for the GATE Exam. Related Read: while loop in C programming. The recursive function/method allows us to divide the complex problem into identical single simple cases that can be handled easily. lcm of the n numbers | DaniWeb Here in this program we will be using recursive approach of Euclidean algorithm to find GCD of two numbers. Once we get the GCD, we use the below formula to calculate LCM. Let's Code : [code]#include <stdio.h> int main() { int a,b,c,hcf,st; printf("Enter three numbers : "); scanf("%d,%d,%d", &a,&b,&c . Python program to find out LCM of two numbers using ... LCM Of Two Numbers Java Program | 5 Ways - Programs Write a program to find the nth term in the Fibonacci series using recursion. GCD stands for Greatest Common Divisor. LCM is also called as _____a) GCDb) SCMc) GCFd) HCF< . In this program, we will be the first defined recursion function. Reverse a number using recursion in c program Big list of c program examples. C Program to Find LCM of a Number using Recursion Lowest Common Multiple (LCM): The smallest or lowest common multiple of any two or more than two integer numbers is termed LCM. C exercises: Find the LCM of two numbers - w3resource return count. Recursion is the programming technique that a process invoking itself again and again. #include<stdio.h>. For example, the gcd of 8 and 12 is 4. 3. The time complexity remains the same with this logic as well. Assign the value of 'common' variable as 1. 8 comments: For a reference let's find LCM of 6 and 7. In the recursive function LCM, we add the b variable to the sum variable. def recur_factorial(n): #user-defined function if n == 1: return n else: return n*recur_factorial(n-1) Inputs are scanned using the input () function and stored in variable num. C program to find HCF and LCM: The code below finds the highest common factor and the least common multiple of two integers. Above is the source code for C Program to find GCD (HCF) of Three Numbers using Function which is successfully compiled . Enter number: 0. Follow the steps below to solve the problem: Define a recursive function LCM() with 3 integer parameters N, M, and K to find LCM of N and M. The following base conditions need to be considered: If N or M is equal to 1, return N * M. If N is equal to M, return N. Here find_gcd() and find_(lcm) are the recursive methods. Posted in Data Structures & Algorithms Objective Questions. For example, the C LCM value of integer 2 and 3 is 12 because 12 is the smallest positive integer that is divisible by both 2 and 3 (the remainder is 0). Enter two integer numbers: 24 36 HCF of 24 and 36 = 12 LCM of 24 and 36 = 72. Check whether multiple clearly divides both number or not. Email This BlogThis! C Program to find LCM of Two Numbers using While Loop. So, the LCM of 15 and 9 is 45. Tags for HCF and LCM using recursion in C. c program for hcf and lcm using recursion; hcf and lcm using c; lcm and hcf using recursion; least common multiple recursive; hcf in c; c program for lcm and hcf; lcm and hcf in c; recursive function lcm c Logic to find LCM of two numbers using recursion. Using method of recursion, find the HCF. C program to find LCM of two numbers. To understand this example, you should have the knowledge of the following C programming topics: C Functions. Logic to find GCD using recursion. A technique of defining the method/function that contains a call to itself is called the recursion. Data Structures & Algorithms Multiple Choice Questions on "GCD and LCM using Recursion - 2". Logic to find LCM of two numbers using recursion. LCM stands for Least common multiple. HCF & LCM Using Recursive Function Output Enter first number: 23 Enter second number: 69 HCF or GCD of 23 and 69 is 23 Basic Python Program Examples. C Program to find LCM of Two Numbers using While Loop. C program to find the lcm of two numbers; Through this tutorial, we will learn how to find the lcm of two numbers using for loop, while loop, recursion and gcd. If condition statement is used to check the modulus of the value of 'common' variable by the value of 'a . If you can write a program to find LCM of two numbers. Output. Using the mathematical relationship that the product of two numbers is equal to the product of the Greatest Common Divisor and the Least Common Multiplier of those two numbers: A * B = GCD (A,B) * LCM (A,B) The first function is recursive and it's used to find the Greatest Common Divisor, it has cost O (log (n)). To find the largest number, we used the if-else statement. LCM = 2 * 2 * 3 * 3 * 5 = 180. ALGORITHM:-1. The factorial of 0 is 1. Note: GCD is also called Highest Common Facor - HCF. Longest Word in Sentence; Shortest Word in Sentence; Count Character Frequency in String; Most Recommend Questions :-. C++ Programming Server Side Programming. HCF is also known as the greatest common divisor (GCD) or the greatest common factor (GCF). Start 2. i.e., 0! In this article, we are going to learn how to calculate the addition of two numbers using recursion in the C programming language Share to Twitter Share to Facebook Share to Pinterest. LCM: Least Common Multiple of two numbers is the number that is a common multiple of the both the numbers. C Program to Find GCD of Two Numbers Using While loop; 3. Example: 5! Care is to be taken that only positive C# Sharp Recursion: Exercise-12 with Solution. The number of Zeros in the Given number is: 3. Become a Patron! Copy this code and run the. If we divide the product of two numbers by their GCD, it will return the LCM. Below is a program to find LCM of two numbers using recursion. Reverse a number using recursion in c program Big list of c program examples. Then you can very easily write a program to find LCM of three numbers also , cause lcm(a,b,c)=lcm (a,lcm (b,c)). The time complexity for this lcm program in c is O(x) where x=LCM-max(num1,num2) Conclusion. Email This BlogThis! LCM: Least Common Multiple of two numbers is the number that is a common multiple of the both the numbers. Using Static Method Then you can very easily write a program to find LCM of three numbers also , cause lcm(a,b,c)=lcm(a,lcm(b,c)) "> l c m (a, b, c) = l c m (a, l c m (b, c)) lcm(a,b,c)=lcm(a,lcm(b,c)). Java Program to Find LCM and GCD of Two Numbers. So, common multiple of 3 and 4 is 12, 24 and Least Common Multiple is 12. If this test condition is not true, max is incremented by 1 and the iteration continues until the test expression of the if statement is true. For example, the C LCM value of integer 2 and 3 is 12 because 12 is the smallest positive integer that is divisible by both 2 and 3 (the remainder is 0). If there are two numbers x and y, LCM is a positive number and the smallest of all the common multiples of both x and y. . Approach: The idea is to use the basic elementary method of finding LCM of two numbers. #include<stdio.h> int find_lcm(int, int); // function prototype declaration int main() { printf("\n\n\t\tmsrblog - Best place to learn\n\n\n"); int a, b, lcm; printf("\n . Finding LCM using iterative method involves three basic steps: Initialize multiple variable with the maximum value among two given numbers. Answer (1 of 8): If you can write a program to find LCM of two numbers. Factorial Definition: Factorial of a positive integer n, denoted by n!, is the product of all positive integers less than or equal to n. Important Note: By convention, Factorial of 0 is 1. GCD of two numbers Using Temporary Variable; 4. 4 C Programs Find Gcd And Lcm Calculate Gcd By Loop And Recursion Find Lcm Of Two Numbers By Loop And By Using Gcd Formula Lcm Basic C Programs Learn C. C Program To Find Least Common Multiple In This Program Youll Learn How To Calculate Lcm L C Programming Learning Programing Knowledge C Programming . w3resource. LCM Program in C Using Recursion What is LCM? Multiples of 7 are 7, 14, 21, 28, 35, 42, 47, 54…. LCM of two numbers in C++. Home Program in C and C++ to find LCM of three numbers using Division method Om prakash kartik April 10, 2020 Program in C and C++ to find LCM of three numbers using Division method The Common Divisors are: 1,2,4. If it does, then end the process and return multiple as LCM. C Program To Find Length Of String And Concatenate Two Strings. In this program we used the Recursion method. This article is contributed by Madhur Modi.If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to review-team@geeksforgeeks.org. In each iteration, if both n1 and n2 are exactly divisible by i, the value of i is assigned to gcd. Use of C program to find sum of two numbers using recursion. Learn how to find the GCD of two numbers in C programming. C Program To Find LCM and HCF Of Two Number Using Function - 2. Enter any two positive numbers 26 20 LCM of two numbers 26 and 20 is 260 Next Topic while loop vs do-while loop in C ← prev next → For Videos Join Our Youtube Channel: Join Now. I n this tutorial, we are going to see how to reverse a number in C using recursive function. Follow the steps below to solve the problem: Define a recursive function LCM() with 3 integer parameters N, M, and K to find LCM of N and M. The following base conditions need to be considered: If N or M is equal to 1, return N * M. If N is equal to M, return N. Program to find lcm of two numbers in python; In this tutorial, you will learn how to find lcm of two numbers in python using for loop, while loop, and recursion function. The below code can compute the LCM of two any two positive integers. We should pass the largest number as the second argument. The factorial of 5 is 120. Formula To Calculate LCM. Please Enter the First Value Num1 : 2 Please Enter the Second Value Num2 : 3 GCD of 2.0 and 3.0 = 1.0 LCM of 2.0 and 3.0 = 6.0 Python Program to Calculate LCM of Two Numbers using Recursion. Let us take three numbers such as 12, 15 and 18. 4. #include<stdio.h> int lcm(int,int); int main(){ int. LCM of two numbers is divisible by both numbers. We can find LCM in 2 ways: (1) by iterating over a loop (2) by using GCD. Code Explanation Method 2: LCM of Two Numbers using Recursion. = 5 x 4 x 3 x 2 x 1 which is equal to 120. Method 2: C program to find the LCM of two numbers by using GCD in a recursive method: In this method, we will find the LCM of two numbers by using GCD.GCD stands for greatest common divisor.GCD is equal to the largest number that can divide both numbers perfectly. Enter Number . Later we use the if-else statement. If it does, then end the process and return multiple as LCM. Feedback. Before jumping into java program, here is the brief introduction of lcm and gcd od two numbers. LCM, or least common multiple in mathematics,of two numbers is the smallest positive integer that is divisible by both the numbers. 32 comments: Finding LCM using iterative method involves three basic steps: Initialize multiple variable with the maximum value among two given numbers. In this program we have make use of recursion. As we can see the lowest or least common multiple of 6 and 7 is 42. HCF is the Highest Common Factor. The following is a C program to calculate the power using recursion: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27… Write a program in java to find gcd and lcm of two given numbers using loop and recursion. C Program to find the GCD and LCM. We will start from user input, here we have accepted two numbers from the user which are num1 and num2 and converted them into an integer. The LCM of two numbers a and b is the smallest positive integer which is perfectly divisible by both a and b (without remainder). The largest number that can perfectly divide both numbers is known as Greatest Common Divisor or Highest Common Factor (HCF).There are many ways to find GCD. 2.3 Find GCD using Recursion; 2.4 Find GCD using LCM; . For example: Let's say we have the following two numbers: 15 and 9. 250+ TOP MCQs on Power of a Number using Recursion in Logn Time and Answers ; Posted on by Leave a comment. Recursion : Find the LCM of two numbers : ----- Input 1st number for LCM : 4 Input 2nd number for LCM : 6 The LCM of 4 and 6 : 12 . i want better than this. LCM stands for Least Common Multiple. The Least Common Multiple (LCM) of two numbers is the smallest number that is a multiple of both. C Program to Find GCD of Two Numbers Using For loop; 2. Its definition is self-explanatory. Write a program in C# Sharp to find the LCM and GCD of two numbers using recursion. 4 C Programs to Find GCD by loop and recursion Find LCM by Loop and GCD Formula. Re: C: Least common multiple of N numbers using recursion Posted 15 October 2015 - 01:38 AM there are example of recursive lcm algoritms on the internet which you may be able to adapt to suit your requirements, e.g. The lcm () function is used to find LCM of a number using recursion. 15 = 5 * 3 9 = 3 * 3. In this program, two integers entered by the user are stored in variable n1 and n2.Then, for loop is iterated until i is less than n1 and n2. C User-defined functions. C Program to find GCD of n Numbers Simultaneously 1. If condition statement is used to check the modulus of the value of 'common' variable by the value of 'a . LCM: Least common Multiple. i.e., 5! Below is the source code for C Program to Find LCM of Number using Recursion which is successfully compiled and run on Windows System to produce desired output as shown below : void print1To10(int); int main() {. C Program to Find Random Number. The Euclidean algorithm to find GCD is, Algorithm to find GCD using Euclidean algorithm Begin: function gcd ( a, b ) If ( b = 0) then return a End if Else return gcd ( b, a mod b ); End if End function End. … While loop is used to check that both 'a' and 'b' variable values are not equal. C Program to Find G.C.D Using Recursion. In this program, I have used the while loop to find the least . C programming functions C programming recursion C programming user-defined function We have use following formula to find the LCM of two numbers using GCD LCM = (number1 * number2) / GCD Visit this page to learn how to calculate GCD using loops C program to find GCD and LCM using recursion = 1. A program to find the LCM of two numbers is given as . How to find LCM of two numbers in C programming using recursion. The LCM of two numbers can also be found using the formula: LCM = (num1*num2)/GCD. C Recursion: Exercise-13 with Solution. Enter number: 5. Lcm_fun.c Output. . Here in this program we will be using recursive approach of Euclidean algorithm to find GCD of two numbers. Because: Divisors of 8 are:1,2,4,8. and Divisors of 12 are:1,2,3,4,6,12. Related Article : Finding LCM of more than two (or array) numbers without using GCD; Inbuilt function for calculating LCM in C++. C Program to find GCD of two Numbers using Recursion. Greatest Common Divisor (GCD) of two numbers is a number that divides both of them. Approach: The idea is to use the basic elementary method of finding LCM of two numbers. Hello, World! In this C program, we are reading the two integer numbers using 'a' and 'b' variables respectively. We can also use the recursion technique to find the lcm of two numbers. Write a program in C to find the LCM of two numbers using recursion. An LCM is the lowest common multiple of any 2 numbers. Multiples of 6 are 6, 12, 18, 24, 30, 36, 42, 48…. LCM = ( num1 * num2 ) / GCD; Source Code: C Program To Find GCD and LCM of Two Numbers using Euclidean algorithm The following C program reverses the number entered by the user, and then displays the reversed number on the screen. When the for loop is completed, the greatest common divisor of two numbers is stored in variable gcd. my approach: find the max of the n numbers and start dividing it by all numbers , if all are dividing it then print it, else take next multiple of the max number and repaet the division process. It allows user to enter two positive integer values, and calculate the GCD of those two values by calling findgcd function recursively. Enter the first number:5 Enter the second number:10 LCM is: 10. n=int (input ("Enter a number:")) print ("The number of Zeros in the Given number is:",count_digit (n)) Input/Output: Enter a number:505066660. The hcf () function is used to find the HCF of two entered integers using recursion. C Program to find LCM of two Numbers using Recursion. If the condition is true then . #include<stdio.h> // declaring the recursive function int find_gcd (int , int ); int main () { printf ("\n\n\t\tStudytonight - Best . Reverse Number Using Recursive Function; String Related. In this C program, we are reading the two integer numbers using 'a' and 'b' variables respectively. So here's your c program to find LCM of three numbers. In this example, you will learn about different ways of C++ program to find GCD or HCF using for and while loop of two integers.. Write a C program to find LCM of two numbers using recursion. Logic to find GCD using recursion. Using the loop; Using the GCD or HCF; Using the Recursion; C++ Programming Code to Find the LCM of two numbers Using the loop. . C Program To Find LCM and HCF Of Two Number -1. For example, if the user enters 123 as input, 321 is displayed as output. Print 1 To 10 Using Recursion in C. This prints the natural numbers from 1 to 10. GCD program using function; 7. #include<stdio.h> int find_lcm (int, int); // function prototype declaration int main () { printf ("\n\n\t\tStudytonight . Logic to find LCM of two numbers using recursion. This lcm of two numbers in c program allows the user to enter two positive integer values and we are going to calculate the LCM of those . 1. The following is a C Program to print Fibonacci Sequence using recursion: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 … What is GCD? Given two integers, we have to find the lcm and gcd of two numbers. = 120. . Python program to find out LCM of two numbers using recursion Article Creation Date : 18-Jun-2021 09:15:57 AM. Find the LCM by multiplying the numbers and dividing by their HCF. Hence, LCM of 3 and 4 is 12. This C program is to find LCM of two numbers.LCM(Least Common Multiple) is the smallest positive number which is divisble by both the numbers.For example lcm of 8 and 12 is 24 as 24 is divisble by both 8(8*3) and 12(12*2). Factorial Program in C Using Recursion: The factorial of any positive integer or non-negative number x is equivalent to the multiplication of every integer that is smaller than this non-negative integer x. C Program to find lcm of 3 numbers [code language . So here's your c program to find LCM of three numbers. Pictorial Presentation: Sample Solution: LCM is the method to find the smallest possible multiple of two or more numbers. Programs to find LCM of Two Numbers in C. C Program to find LCM of Two Numbers using While Loop; C Program to find LCM of Two Numbers using For Loop We will discuss three ways to write code for it. Lcm using recursion in c Using recursion in c find the largest element in an array Prime number program in c using recursion . OUTPUT : : /* C Program to find GCD (HCF) of Three Numbers using Function */ Enter 1st positive integer :: 4 Enter 2nd positive integer :: 8 Enter 3rd positive integer :: 16 GCD of [ 4, 8, 16 ] is : [ 4 ] Process returned 0. In this tutorial, we will discuss a concept of use of C program to find the sum of two numbers using recursion. but i think this is too slow. C++ Program to Find LCM. Check whether multiple clearly divides both number or not. GCD of both Positive and Negative Number; 5. The LCM stands for Least Common Multiple, which is used to get the smallest common multiple of two numbers (n1 and n2), and the common multiple should be divisible by the given numbers.A common multiple is a number that is common in both numbers. For example, the LCM of 12 and 18 is 36. LCM of Two Numbers in C++ Using Recursion. lcmRecursion(numb1, numb2) # The recursive function returns the multiple variable # which is the result(lcm of the given two numbers) return lcmRecursion.multiple # set multiplee variable value to 0 lcmRecursion.multiple = 0 # Scan the given two numbers as user input using a map, # int, and split() functions and store them in two variables. Multiplication using recursion in c Lcm using recursion in c Using recursion in c find the largest element in an array . The following C program, using recursion, finds the LCM. This lcm of two numbers in c program allows the user to enter two positive integer values and we are going to calculate the LCM of those . Answer (1 of 9): Well it's easy. C Program To Find Length Of A String Including Blank Spaces, Tabs, And Other Special Characters. The representation of the LCM of two numbers, as LCM (a, b) or lcm (a, b). file in a desired environment (a terminal, or an IDE). C programming, exercises, solution : Write a program in C to find the LCM of two numbers using recursion. Below is a program to find LCM of two numbers using recursion. Assign the value of 'common' variable as 1. Lets write a C program to find Factorial of a user input number using Recursion. Pictorial Presentation: int N=10; printf("\nNumbers from 1 To 10 are: "); In the else block we write the base condition, that is, return the control back to the calling function if N is 0. for example LCM and GCD of 8,12 is 24 and 4 Read more about C Programming Language . Below is a program to the GCD of the two user input numbers using recursion. Share to Twitter Share to Facebook Share to Pinterest. hi, Can anyone suggest me the approach for finding the lcm of the n numbers? Accept two numbers from user. In this example, you will learn to find the GCD (Greatest Common Divisor) of two positive integers entered by the user using recursion. How To Find Gcd Of 3 Numbers In Python. In this C Program, we are reading the two integer numbers using 'a' and 'b' variables respectively. Therefore Greatest common divisor of 8,12 is: 4. In this video, we will discuss the logic to find out LCM & HCF of two given numbers in C. If you want to know the solution to calculate LCM & GCD of given nu. Gcd of Two Numbers using Recursion; 6. For Example, LCM of 2 and 3 is 6.LCM of 72 and 120 is 360. The lcm () function is used to find LCM of a number using recursion. C program to find GCD Using for loop. If it does, then end the process and return multiple as LCM. Let's consider a program to get the LCM of two numbers in C using the Recursive function. Finding LCM using iterative method involves three basic steps: Initialize multiple variable with the maximum value among two given numbers. The Euclidean algorithm to find GCD is, Algorithm to find GCD using Euclidean algorithm Begin: function gcd ( a, b ) If ( b = 0) then return a End if Else return gcd ( b, a mod b ); End if End function End. LCM = 144 In this C program to find LCM using recursion, we take two integers as input from the user. 12 = 2 * 2 * 3; 15 = 3 * 5; 18 = 2 * 3 * 3; So we take the common prime factors and then the rest of the ones and multiply them with each other which would give us the LCM. HCF Program in C . Is a program to find LCM of 2 and 3 is 6.LCM of and.: 24 36 HCF of two numbers is the brief introduction of LCM GCD! Series using recursion 6.LCM of 72 and 120 is 360 a desired environment ( a b. 3 x 2 x 1 which is successfully compiled LCM ) are the recursive methods &... X 2 x 1 which is equal to 120 36 = 72 the time complexity this... Of both assigned to GCD recursive function/method allows us to divide the complex problem into identical single simple cases can... A loop ( 2 ) by using GCD is: 3 number of Zeros in the series. Tutorial, we will discuss three ways to write code for c to! Code Explanation method 2: LCM = ( num1 * num2 ) Conclusion note GCD! And Negative number ; 5 of both of both a String Including Blank Spaces, Tabs, then... The for loop ; 2 and 18 is 36 divide the complex problem into single. Euclidean algorithm to find the LCM of two numbers is the smallest number that is program! Gcdb ) SCMc ) GCFd ) HCF & lt ; stdio.h & ;! ) Conclusion by multiplying the numbers ; stdio.h & gt ; int LCM ( a, b ) s LCM., 321 is displayed as output allows us to divide the product two. 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That a process invoking itself again and again if the user enters 123 as input, 321 is as. It does, then end the process and return multiple as LCM ( function. Number ; 5 the if-else statement and 120 is 360 an LCM is the that! Method to find the LCM of 12 are:1,2,3,4,6,12 that divides both of them, the greatest divisor... 123 as input, 321 is displayed as output those two values by calling findgcd function.... Be the first defined recursion function to know more about the Factorial program in c # Sharp to find of! Tutorial Gateway < /a > return count two positive integer values, and Other CSE for! * num2 ) Conclusion | Newtum < /a > return count number -1 we pass! Of the LCM 28, 35, 42, 47, 54… TOP MCQs on of... 12, 18, 24, 30, 36, 42, 47 54…. Common & # x27 ; s say we have to find the LCM of a number using.! When the for loop ; 2 2 numbers code Explanation method 2: LCM = ( num1, num2 /GCD... As LCM loop ; 2 Zeros in the recursive methods environment ( a b. Ways to write code for c program to find LCM of two is! 120 is 360 number as the second argument multiplying the numbers and dividing by their GCD lcm of three numbers in c using recursion it will the! '' > c program to find LCM of 12 and 18 is 36 in this,! ) GCFd ) HCF & lt ; stdio.h & gt ; also known as the second.., b ) input, 321 is displayed as output 15 = 5 x 4 x x... Technique that a process invoking itself again and again use the below formula to calculate LCM 8 are:1,2,4,8. and of..., 14, 21, 28, lcm of three numbers in c using recursion, 42, 48… * =! Other Special Characters 10 using recursion = 3 * 3 * 3 9 = 3 * 3 5. 12 LCM of a String Including Blank Spaces, Tabs, and calculate the GCD of two number using.! Entered by the user enters 123 as input, 321 is displayed as output HCF! Both the numbers the smallest lcm of three numbers in c using recursion multiple of two numbers using function - 2 x 4 x x! Given number is: 4 the GCD of two entered integers using recursion int main ( ).! Of 6 and 7 x27 ; s say we have to find the LCM two! Approach of Euclidean algorithm to find the LCM of two numbers can also use the below formula to LCM! 123 as input, 321 is displayed as output two Strings or the common... O ( x ) where x=LCM-max ( num1 * num2 ) /GCD: //www.daniweb.com/programming/software-development/threads/435195/lcm-of-the-n-numbers '' > program! Multiple clearly divides both of them from 1 to 10 = 12 of... Use the recursion c Functions source code for c program reverses the number that divides number! Lcm of two numbers using Temporary variable ; 4 displays the reversed number on the screen that is a multiple! List of c program to find the LCM and HCF of two number using recursion integer numbers 15! The user enters 123 as input, 321 is displayed as output the GCD of two numbers loop... A reference Let & # x27 ; variable as 1 6 are 6, 12 18! Lcm by loop and GCD formula and 18 is 36 function LCM, we used the While to... By iterating over a loop ( 2 ) by using GCD the product of two numbers loop ; 3 your... [ code language also known as the second argument LCM in 2 ways: ( )! That contains a call to itself is called the recursion technique to find the of!