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Java program to find the GCD or HCF of two numbers
An H.C.F or Highest Common Factor, is the largest common factor of two or more values.
For example factors of 12 and 16 are −
12 → 1, 2, 3, 4, 6, 12 16 → 1, 2, 4, 8, 16
The common factors are 1, 2, 4 and the highest common factor is 4.
Algorithm
Define two variables - A, B
Set loop from 1 to max of A, B
Check if both are completely divided by same loop number, if yes, store it
Display the stored number is HCF
Example
import java.util.Scanner; public class GCDOfTwoNumbers { public static void main(String args[]){ int a, b, i, hcf = 0; Scanner sc = new Scanner(System.in); System.out.println("Enter first number :: "); a = sc.nextInt(); System.out.println("Enter second number :: "); b = sc.nextInt(); for(i = 1; i <= a || i <= b; i++) { if( a%i == 0 && b%i == 0 ) hcf = i; } System.out.println("HCF of given two numbers is ::"+hcf); } }
Output
Enter first number :: 625 Enter second number :: 125 HCF of given two numbers is ::125
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