// C++ Program to compute factorial of a number
// Factorial of n = 1*2*3...*n
#include <iostream>
using namespace std;
int main()
{
int number, i = 1, factorial = 1;
cout << "Enter a positive integer: ";
cin >> number;
while ( i <= number) {
factorial *= i; //factorial = factorial * i;
++i;
}
cout<<"Factorial of "<< number <<" = "<< factorial;
return 0;
}