using System;

using System.Collections.Generic;

​

namespace eran0801

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("The factors of 12 are:");

            //Create an instance of the calculator class

            var factorCalculator = new Factor(12);

            // A foreach statement is a bit nicer than a for statement

            foreach (var factor in factorCalculator.GetFactors()) {

                Console.WriteLine(factor);

            }

        }

    }

​

    public class Factor {

        int _number;

​

        //This is the constructor that is called when we do: new Factor(int)

        public Factor(int number) {

            this._number = number;

        }

​

        /// <summary>

        /// Calculates the factors for a number

        /// </summary>

        /// <returns>An emumerable (a collection) for factors of the input number</returns>

        public IEnumerable<int> GetFactors() {

            //Here is your code from the snippet

            for (var i = 1; i <= _number; i++) 

                if (_number % i == 0)

                    /*

                        yield return means return a value, but I'm not done - you can have more values.

                        foreach uses them to keep calling it until we run out of values to generate.

                        that would happen when the for loop condition (i < _number) is not satisfied.

                    */

                    yield return i;

        }

    }

}