/******************************************************/
/* Introduction to Programming                        */
/* By Dr. ANTF                                        */
/* www.antf.net                                       */
/* Copyright 2015                                     */
/*                                                    */
/* C# 408 - Problem 7: Is Prime (a)                   */
/******************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DOS
{
    class Program
    {
        static bool IsPrime(int n)
        {
            for (int i = 2; i < n; i++) if (n % i == 0) return false;
            return true;
        }

        static void Main(string[] args)
        {
            int x;
            Console.Write("Please enter a number: ");
            x = int.Parse(Console.ReadLine());

            if (IsPrime(x)) Console.WriteLine("\n\n{0} is prime", x);
            else Console.WriteLine("\n\n{0} is NOT prime", x);

            Console.ReadKey();
        }
    }
}