Factorial No Program

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

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter the Factorial Number");
            int no = Convert.ToInt32( Console.ReadLine());
            int x=1;
            for (int i = 1; i <= no; i++)
            {
                x = x * i;
            }

            Console.WriteLine("Factorial of "+ no +" = "+x);
            Console.ReadLine();
        }
    }
}

Recursion

static void Main(string[] args)
        {
            Console.WriteLine("Enter the Factorial Number");
            int no = Convert.ToInt32( Console.ReadLine());

            int x = Fac(no);
           Console.WriteLine("Factorial of "+ no +" = "+x);
          

            //Console.WriteLine("Factorial of "+ no +" = "+x);
            Console.ReadLine();
        }

        public static int Fac(int x)
        {
            if (x == 1)
            { return 1; }
            return (x * Fac(x - 1));
            
           

            
        }