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c++while-loopintegerfactorial

Simple C++ factorial program

as homework I need a program that reads a nonnegative integer and computes and prints its factorial. So far I wrote the code but if I try to input 50! the result is 0. It works with smaller numbers. Any help would be much appreciated.

#include <iostream>

using namespace std;

int main()
{
    int counter = 1;
    int number;

    cout << "Please enter a number: ";
    cin >> number;

    int factorial = number;
    while (counter != number)
    {
        factorial = factorial * (number - counter);
        counter++;

    }

    cout << "The factorial of " << number << "! is: " << factorial << endl;
    return 0;
}
Solution

  • 50! is 30414093201713378043612608166064768844377641568960512000000000000, far too large for an int. Due to integer overflow, the result is 0.