Calculate Factorial using Array

using System;

class Program
{
    static void Main(string[] args)
    {

        int[] numbers = new int[] {100, 171, 250};

        foreach (int n in numbers)
        {
            Console.WriteLine("The factorial of {0} is:", n);
            ArrayFactorial(n);
            Console.WriteLine("\n");
        }
    }

    private static void ArrayFactorial(int n)
    {
        int[] a = new int[1000]; //array will have the capacity to store 200 digits.
        int i, j, temp, m, x;

        a[0] = 1;  //initializes array with only 1 digit, the digit 1.
        m = 1;    // initializes digit counter

        temp = 0; //Initializes carry variable to 0.
        for (i = 1; i <= n; i++)
        {
            for (j = 0; j < m; j++)
            {
                x = a[j] * i + temp; //x contains the digit by digit product
                a[j] = x % 10; //Contains the digit to store in position j
                temp = x / 10; //Contains the carry value that will be stored on later indexes
            }
            do //while loop that will store the carry value on array.
            {
                a[m] = temp % 10;
                temp = temp / 10;
                m++; // increments digit counter
            } while (temp > 0);
        }

        //printing answer
        for (i = m - 1; i >= 0; i--)
        {
            Console.Write(a[i]);
        }
    }
}