IsPrimeNumber

/* Write an expression that checks if given positive integer number n (n ≤ 100) is prime. E.g. 37 is prime. */

using System;



class IsPrimeNumber
{
    static void Main()
    {
        Console.Write("Enter positive integer number here to check if is prime \nn = ");
        int n = int.Parse(Console.ReadLine());
        int p = 0 ;

        if ((n < 0) || (n > 100))
        {
            Console.WriteLine("You have entered invaled number. \nPlease try again using positive number(n <= 100).");
        }

        else
        {

            for (int i = 2; i < n; i++)
            {
                if (n % i == 0)
                {
                    p = p + 1;

                }
                else
                {
                    p = p + 0;
                }
            }

            if (p == 0)
            {
                Console.WriteLine("The number {0} is prime.\nIt can't be devided without reminder(exepted 1 or {0})", n);
            }
            else
            {
                Console.WriteLine("The number {0} isn't prime.\nIt can be devided of {1} numbers without reminder(exepted 1 or {0})", n, p);
            }
        }

    }
}