Program in C to find the factorial of a number

Write a program in C to find the factorial of a number

#include<stdio.h>

int main()

{

          int i=1,f=1,num;

          printf("\nEnter a number:");

          scanf("%d",&num);

          while(i<=num)

          {

                   f=f*i;

                   i++;

          }

          printf("\nFactorial of %d is:%d",num,f);

          return 0;

}