factorial of a given number in c

1#include<stdio.h>
2int main(){
3  int i,f=1,num;
4 
5  printf("Enter a number: ");
6  scanf("%d",&num);
7 
8  for(i=1;i<=num;i++)
9      f=f*i;
10 
11  printf("Factorial of %d is: %d",num,f);
12  return 0;
13}

1//Factorial of a given number
2#include <stdio.h>
3
4//This function returns factorial of the number passed to it 
5long int factorialOf(int number){
6    long int factorial = 1;
7    while(number){
8        factorial*=number;
9        number-=1;
10    }
11    return factorial;
12}
13
14int main(void) {
15	int n;
16	printf("Find factorial of \n");
17	scanf("%d",&n);
18	printf("\nThe factorial of %d is %ld",n,factorialOf(n));
19	return 0;
20}