// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002418/int64-factorof

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    public static void Main()

    {   

        Int64 factorNumber = 1000;

        Console.WriteLine("Factor of {0} are:\n", factorNumber);

​

        for (Int64 val = 1; val <= factorNumber; val++)

        {

            // C# Extension Method: Int64 - FactorOf

            if(val.FactorOf(factorNumber))

            {

                Console.WriteLine(val);

            }

        }

    }

}