Write a C program to calculate the factorial of a given number

#include<stdio.h>

int main()

{

  int k, n;              

  int fact = 1;         

printf("Enter an input number to find its factorial \n");

scanf("%d", &n);

   if(n==0)

  {

      printf("Entered number must be above zero \n");

  }

  else

  {

     for (k = 1; k <= n; k++)

     fact = fact * k;

  }

printf("Factorial of the given number is %d = %d\n", n, fact);

return 0;

}

OUTPUT:

Enter an input number to find its factorial
6
Factorial of the given number is 6 = 720

Enter an input number to find its factorial
0
Entered number must be above zero