How to check a number palindrome or not in c# ?

Check a number palindrome or not!

Program: 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            int num, rem, rev = 0;

            Console.WriteLine("//How to check a number palindrome or not in c# ?");

            Console.WriteLine("Enter A number :");

            num = Convert.ToInt32(Console.ReadLine());

            if (num > 0)

            {

                for (int temp = num; temp != 0; temp /= 10)

                {

                    rem = temp % 10;

                    rev = rem + (rev * 10);

                }

                if (rev == num)

                    Console.WriteLine("The number " + num + " is a palindrome number .");

                else

                    Console.WriteLine("The number " + num + " is not a palindrome number .");

            }

            else

                Console.WriteLine("Enter A valid Number :\n");

            Console.ReadKey();

        }

    }

}

Output :

//How to check a number palindrome or not in c# ?

Case 1:

           Enter A number :

           151

           The number 151 is a palindrome number .

 Case 2:

           Enter A number :

           12345

           The number 12345 is not a palindrome number .