Factorial

#include <stdio.h>

int main(void){

    int num;
    long factorial = 1;

    printf("Enter a number: ");
    scanf("%d", &num);

    long orignum = num;

    while (num > 1){

        factorial *= num;

        num -= 1;
    }

    printf("Factorial of %d is %ld", orignum, factorial);


    return 0;
}