Program to Calculate Factorial of a Number Using Recursion

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#include<iostream>
using namespace std;

int factorial(int n);

int main() {

  int n;

  cout << "Enter a positive integer: ";
  cin >> n;

  cout << "Factorial of " << n << " = " << factorial(n);

  return 0;
}

int factorial(int n) {
  if(n > 1)
    return n * factorial(n - 1);
  else
    return 1;
}

 

Output

Enter an positive integer: 6
Factorial of 6 = 720

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Output Enter an positive integer: 6 Factorial of 6 = 720
Output Enter an positive integer: 6 Factorial of 6 = 720 -
#include <iostream>
using namespace std;

int hcf(int n1,...
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