Space Heater

// I call this code space heater because it really warms up the room by doing pointless calculations.
// It even has settings to change how much pointlessness is being calculated, and thus how much heat
// is being generated. The actual correlation between setting and temperature is unknown, and it's
// expected that it isn't even linear. But most people won't know the difference. For best results,
// the setting should not exceed the number of cores your processor has.
// For fun, it calculates prime numbers.

using System.Threading;

class SpaceHeater
{
    public static void main(String[] args)
    {
        // Test users loved the arbitrary 17 settings -- they feel that they
        // have ultimate control.
        Console.Write("On a scale of 1 - 17 how hot should it get: ");
        int setting = Console.Read();

        List<Thread> threads = new List<Thread>();

        for (int x = 0; x < setting; x++)
        {
            Thread newThread = new Thread(new ThreadStart(new ActualCode().prime));
            threads.Add(newThread);
        }

        Console.WriteLine("Press any key to stop the space heater");
        Console.ReadKey();

        foreach (Thread t in threads)
        {
            t.Abort();
        }
    }
}

class ActualCode
{
    public void prime()
    {
        int x = 1;
        int y = 3;
        int testNumber = 3;

        while (true)
        {
            while (x <= y)
            {
                if (x * y == testNumber)
                {
                    // Here is where you would print out the primes, as if that
                    // were even important...
                    testNumber++;
                }
                x++;
            }
            x = 1;
            y++;
        }
    }
}