FACTORIAL OF A NUMBER

#include<stdio.h>
int main()
{
    long int i,n,f=1;
    printf("Enter the number: ");
    scanf("%ld",&n);
    for(i=1;i<=n;i++)
        f=f*i;
    printf("\nThe factorial of %ld is %ld\n",n,f);
    return 1;    
}