Recursive Function to compute n!

#include<stdio.h>

#include<conio.h>

long factorial(int);

void main()

{

        int n;

        long fact=1;

        clrscr();

        printf("Enter no ");

        scanf("%d",&n);

        fact=factorial(n);

        printf(" %ld",fact);

        getch();

}

long factorial(int n)

{

        if(n!=1)

        {

                    return n*factorial(n-1);

        }

}