//Write a program check whether the Entered Number is Prime Number or Not.
using System;
class a
{
    public void getdata(int num)
    {
        int k;
        k = 0;
        for (int i = 1; i <= num; i++)
        {
            if (num % i == 0)
            {
                k++;
            }
        }
        if (k == 2)
        {
            Console.WriteLine("Entered Number is a Prime Number and the Largest Factor is {0}", num);
        }
        else
        {
            Console.WriteLine("Not a Prime Number");
        }
    }
}
class myclass
{
    public static void Main()
    {
        int num;
        Console.WriteLine("enter number");
        num = Convert.ToInt32(Console.ReadLine());
        a a1 = new a();
        a1.getdata(num);
       Console.Read();
    }
}