Factorial - C#

using System;

namespace Factorial
{
    class Program
    {
        static void Main(string[] args)
        {
            int factorial;
            while (!int.TryParse(Console.ReadLine(), out factorial))
            {
                Console.WriteLine("Invalid number entered");
            }
            int result = 0;
            bool hit = true;
            for (int i = factorial - 1; i > 0; i--)
            {
                if (hit)
                {
                    result = factorial;
                    hit = false;
                }
                result *= i;
            }
            Console.WriteLine(result);
            Console.ReadLine();
        }
    }
}