C# giving me repeated output

using System;
using System.Numerics;
namespace Project16
{
    class Hello 
    {
        static void Main() 
        {
            BigInteger summand = 0;
            BigInteger bigInteger = BigInteger.Pow(2, 1000);
            string stringbigInteger = bigInteger.ToString();
            BigInteger[] stringbigIntegerArray = new BigInteger[stringbigInteger.Length+1];
            for (int i = 0; i <= stringbigInteger.Length; i++)
            {
                stringbigIntegerArray[i] = BigInteger.Parse(stringbigInteger);
                Console.WriteLine(stringbigIntegerArray[i]);
                Console.WriteLine("");
            }
            Console.ReadKey();
        }
    }
}

The following code gives me a repeated output of 2^1000 (which is a lot of digits). I only want the code to output the number once. What can I do?