return array function in C# which displays the factorial in below I have shown

[Muzamil]

What I'm making mistake I want to display in such a way
Enter the number : 4
Factorial of 4 is : 1x2x3x4 = 24!

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

namespace Factorial
{
    class fact
    {
        public int[] factorial(int num)
        {
            int[] fact = new int[10];
            for (int i = 0; i < num; i++)
            {
                fact[i] = fact[i] + i;
            }
            return fact;
        }
    }

    class fact
    {
        static void Main(string[] args)
        {
            fact num1 = new fact();
            int num;
            int[] result;

            num = Convert.ToInt32(Console.ReadLine());

            result = num1.factorial(num);
            for (int i = 0; i < num; i++)
            {

                Console.Write(result[i]);

                Console.WriteLine();
                Console.WriteLine();
            }

        }
    }
}