# GCD

Geekboots | C Programming | Jun 06, 2016

#include<stdio.h>
void common_divisor(int, int);
int main() {
int a, b;
printf("Enter two positive number to find Greatest Common Divisor:\n");
scanf("%d %d",&a, &b);
common_divisor(a,b);
return 0;
}
/* Recursive function */
void common_divisor(int x, int y) {
if(y == 0)
printf("GCD of two number is: %d\n",x);
else
/* Call the common_divisor function inside in it */
common_divisor(y, x % y);
}

Enter two positive number to find Greatest Common Divisor:

30

20

GCD of two number is: 10

Learn more about Greatest Common Divisor