C program to find LCM and HCF

#include <stdio.h>

int main() {
  int a, b, x, y, t, gcd, lcm;

  printf("Enter two integers\n");
  scanf("%d%d", &x, &y);

  a = x;  // 34
  b = y;   //4

  while (b != 0) {
    t = b;    // t =12,5
    b = a % b;    // b= 65/12=0,2
    a = t;    // a= 12,5
  }

  gcd = a;
  lcm = (x*y)/gcd;

  printf("Greatest common divisor of %d and %d = %d\n", x, y, gcd);
  printf("Least common multiple of %d and %d = %d\n", x, y, lcm);

  return 0;
}