text: //GCD greatest common divisor
  #include <stdio.h>
  int main()
  {
      int n1, n2, i, gcd;
      printf("Enter two integers: ");
      scanf("%d %d", &n1, &n2);
      for (i = 1; i <= n1 && i <= n2; ++i)
      {
          // Checks if i is factor of both integers
          if (n1 % i == 0 && n2 % i == 0)
              gcd = i;
      }
      printf("G.C.D of %d and %d is %d", n1, n2, gcd);
      return 0;
  }