SoftUni_Homework_1_3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Numerics;


namespace SoftUni_Homework_1_3
{
    class Program
    {
        static void Main(string[] args)
        {
            uint[] numbers = new uint[] { 100, 171, 250 }; // Numbers of factorials to be printed
            uint counter = 1; // Variable used for iteration
            /*  BigInteger class (.NET framework 4.5) https://msdn.microsoft.com/en-us/library/system.numerics.biginteger(v=vs.110).aspx */
            BigInteger factorial = new BigInteger(1);
            while (counter <= numbers[2])
            {
                factorial = BigInteger.Multiply(factorial, counter ); // Calculate factorial
                if (numbers.Contains(counter))
                {
                    Console.WriteLine("!"+counter.ToString() + "=" + factorial.ToString() + '\n'); // Output the value if it's in the list
                }
                counter++;
            }
            Console.ReadKey();
        }
    }
}