using System;

​

public class Program

{

    public static void Main()

    {

        int fact2 = 0;

        int fact3 = 0;

        int fact5 = 0;

        int fact7 = 0;

        int fact11 = 0;

        int fact13 = 0;

        Console.WriteLine("Welcome to the prime-factorial program. Please enter an integer you would like to factor below.");

        int number = Convert.ToInt32(Console.ReadLine());

        while (number % 2 == 0 && number != 1)

        {

            fact2 = fact2 + 1;

            number = number / 2;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's.");

        }

​

        while (number % 3 == 0 && number != 1)

        {

            fact3 = fact3 + 1;

            number = number / 3;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's and " + fact3 + " three's.");

        }

​

        while (number % 5 == 0 && number != 1)

        {

            fact5 = fact5 + 1;

            number = number / 5;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's, " + fact3 + " three's, and " + fact5 + " five's.");

        }

​

        while (number % 7 == 0 && number != 1)

        {

            fact7 = fact7 + 1;

            number = number / 7;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's, " + fact3 + " three's, " + fact5 + " five's, and " + fact7 + " seven's.");

        }

​

        while (number % 11 == 0 && number != 1)

        {

            fact11 = fact11 + 1;

            number = number / 11;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's, " + fact3 + " three's, " + fact5 + " five's, " + fact7 + " seven's, and " + fact11 + " eleven's.");

        }

​

        while (number % 13 == 0 && number != 1)

        {

            fact13 = fact13 + 1;

            number = number / 13;

            if (number == 1)

                Console.WriteLine("The prime factor of the number you entered is " + fact2 + " two's, " + fact3 + " three's, " + fact5 + " five's, " + fact7 + " seven's, " + fact11 + " eleven's, and " + fact13 + " thirteen's.");

        }

​

        if (number != 1)

            Console.WriteLine("Sorry, that number's prime factors exceed 13, which is the total extent of this program so far.");

    }

}