Primes

using System;

class PrimeNumbersProgram
{
    static void Main(string[] args)
    {
        Console.WriteLine("Prime Numbers: ");

        for (int i = 2; i <= 1600; i++)
        {
            bool isPrime = true;

            for (int j = 2; j <= Math.Sqrt(i); j++)
            {
                if (i != 2 && i % j == 0)
                {
                    isPrime = false;
                    break;
                }
            }

            if (isPrime)
            {
                Console.Write(" " + i);
            }
        }
        Console.WriteLine();
        Console.ReadLine();
    }
}