C Program to find the factorial of a number using Recursion

#include <stdio.h>  
  
long factorial(int n)  
{  
  if (n == 0)  
    return 1;  
  else  
    return(n * factorial(n-1));  
}  
   
void main()  
{  
  int number;  
  long fact;  
  printf("Enter a Number: ");  
  scanf("%d", &number);   
   
  fact = factorial(number);  
  printf("Factorial of %d is %ld\n", number, fact);  
  getch();  
}