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  1. #include <stdio.h>
  2.  
  3.    int min(int a,int b){
  4.        if(a<b) return a;
  5.        else return b;
  6.    }
  7.    int gcd(int a,int b){
  8.        int hcf;
  9.        for(int i=1;i<=min(a,b);i++){
  10.           if(a%i==0 && b%i==0){
  11.               hcf=i;
  12.           }
  13.        }
  14.       return hcf;
  15.    }
  16.  
  17.  
  18. int main(void) {
  19.     int a;
  20.     printf("Enter 1st number: \n");
  21.     scanf("%d",&a);
  22.     int b;
  23.     printf("Enter the 2nd number: ");
  24.     scanf("%d",&b);
  25.  
  26.     int hcf=gcd(a,b);
  27.     printf("The HCF/GCD of %d and %d is %d",a,b,hcf);
  28.  
  29. 	return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
70
100
stdout 
Enter 1st number: 
Enter the 2nd number: The HCF/GCD of 70 and 100 is 10
https://ideone.com/m1LfqM
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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