Given Number is Prime number or not in C#.Net

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            int count = 0;

            Console.WriteLine("Enter a value");

            int x = int.Parse(Console.ReadLine());

            int y = 2;

            if (y <= x / 2)

            {

                if (x % y == 0)

                {

                    count++;

                }

            }

            if (count == 0 && count != 1)

            {

                Console.WriteLine(x + " is Prime Number");

            }

            else

            {

                Console.WriteLine(x + " is not Prime Number");

            }

            Console.ReadLine();

        }

    }

}

Output