Program In C++ Factorial Using Recursion Example

#include<iostream>
#include<conio.h>
using namespace std;
//Function
long factorial(int);
int main()
{
// Variable Declaration
int counter, n;
// Get Input Value
cout<<“Enter the Number :”;
cin>>n;
// Factorial Function Call
cout<<n<<” Factorial Value Is “<<factorial(n);
// Wait For Output Screen
getch();
return 0;
}
// Factorial recursion Functionlong factorial(int n)
{
if (n == 0)
return 1;
else
return(n * factorial(n-1));
}

Output :
Enter the Number :6
6 Factorial Value Is 720