Recursion help

[james]

I need to write a program, something like this: Write a program which prompts the user for a number between 1 and 50 and which passes that number to a function which calculates the factorial of the number. The function must return the answer and main() must print it. Use recursion.What can be wrong.PLEASE

#include<stdio.h>
int factorial (int a,int b);
void main (void)
{
int fact;
printf("Enter a number between 1 and 50: ");
scanf("%d",&x);
fact=factorial (x,50);
printf("The factorial is %d",fact);

}
int factorial (int a,int b)
{
return (factorial 50/(b-a));

getchar();
}

[Stoned_Coder]

you are not working out the factorial properly....

unsigned long factorial(unsigned long number)
{
if (number<=1) 
return 1;
else
return number*factorial(number-1);
}

[Witch_King]

#include<stdio.h>
#include<stdlib.h>

unsigned long factorial(int num)
{
	unsigned long ans;

	if (num> 0) 
		ans = num * factorial(num-1);
	else
		ans = 1;
	return ans;
}

int main()
{
	int num;
	printf("Enter number between 1 and 15: ");
	while( scanf("%d",&num)!= 1 || num < 0 || num > 15)
	{
		while(getchar() != '\n') continue;
		printf("Try again: ");
	}
	printf("Factorial = %ld\n", factorial(num));
	return 0;
}

You can't go any higher than 15 unless you use compiler specific data types such as __int64 on a Microsoft OS