using System;

public class Program

{

    public static void Main()

    {

     string choice = "zz";

        while(choice!= "Q" && choice != "q")

        {

        Console.WriteLine("please enter a positive integer.");

redo:

string input = Console.ReadLine();

ulong n;

if(ulong.TryParse(input,out n))

{Console.Write(n+ " is divisible by : ");

 for (ulong i = 1; i<100; i++)

 {

     if(n%i == 0)

         Console.Write(i + " ");

 }

Console.WriteLine("Press q to quit or any other key to continue");

                    choice = Console.ReadLine();

 Console.Clear();

        }

}

    }

}

​

​