Find the factorial of any number.

#include<stdio.h>
main( )
{
    int n,value;
    printf( "Enter the number : ");
    scanf( "%d", &n );
    if ( n < 0 )
        printf( "No factorial of negative number\n");
    else
        if ( n==0 )
            printf( "Factorial of zero is 1\n" );
        else
        {
            value = factorial( n ); /* Function for factorial of number */
            printf( "Factorial of %d = %d\n", n, value );
        }
}/*End of main()*/
factorial( int k )
{
    int fact =1;
    if ( k > 1 )
        fact = k * factorial( k-1 );  /* Recursive function call */
    return ( fact );
}