using System;

using System.Collections;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        FindPrimeDeviders findSubArray = new FindPrimeDeviders();   

        findSubArray.Run();

    }

}

​

​

 public class FindPrimeDeviders

    {

        private int x = 14;

        private List<int> exclude = new List<int>();

​

        public void Run()

        {

            Console.WriteLine("Test number: " + x.ToString());

​

            for (int i = 2; i <= x / 2; i++)

            {

                if (exclude.Contains(i)) continue;

                FindNotPrime(i);

                if (x % i == 0)

                    Console.WriteLine("Devider {0} is prime", i);

            }

​

            Console.ReadLine();

        }

​

        public void FindNotPrime(int num)

        {

            int current = num;

            do

            {

                current = current + num;

                exclude.Add(current);

            }

            while (current < x);

        }

   }

​

​