Question

Write a program to find the factorial of the given number using recursion.

Answer 1

#include<iostream>
using namespace std;
int factorial(int); // Function prototype //
int main()
{
int no;
cout<<"\nEnter a number to find its factorial: ";
cin >> no;
cout << "\nFactorial of Number " << no <<" = " << factorial(no);
return 0;
}
int factorial(int m)
{
if (m > 1)
{
return m*factorial(m-1);
}
else
{
return 1;
}
}

Output :

Enter a number to find its factorial: 5

Factorial of Number 5 = 120