Prime Numbers

using System;

class PrimeNumbers
{
    static void Main()
    {
        int number = int.Parse(Console.ReadLine());
        int divByTwo = number / 2;
        int divByThree = number / 3;
        int divByFive = number / 5;
        if (number > 0)
        {
            Console.WriteLine((number != 2 && number == divByTwo * 2) || (number != 3 && number == divByThree * 3) || (number != 5 && number == divByFive * 5) ? "The number is Prime!" : "The number is NOT Prime!");

        }
        else Console.WriteLine("The number is not Prime!");
        Main();
    }
}