Finding smallest whole number on Google

The Math Factor Podcast was wondering what was the lowest number that Google did not archive.

I figured, a Powershell script would be fun to make to solve this problem. Here is what I wrote so far:

 

clear-variable -name doc
clear-variable -name link
clear-variable -name anchors
clear-variable -name ie
clear-variable -name Notfound

$ie = new-object -com "InternetExplorer.Application"
$Notfound = $true
$i = 1000
$ie.navigate("http://www.google.com/search?hl=en&q=" + $i + "&btnG=Search")
Start-Sleep –s 3

while($Notfound)
{
   $doc = $ie.document

       $anchors = $doc.getElementsByTagName("a")
       "Searching number: " + $i
       $j = $i
       foreach ($link in $anchors)
       {
               if($link.href)
               {
              $link.href
                     if($link.href.StartsWith("http://www.google.com/swr?q="))
                  {
                     $i = $i + 1
                                $ie.navigate("http://www.google.com/search?hl=en&q=" + $i + "&btnG=Search")
                Start-Sleep –s 3
                clear-variable -name doc
                 clear-variable -name link
                clear-variable -name anchors
                  }
               }
       }

        if($j -eq $i)
       {
              $Notfound = $false
              "Number not found: " + $i
       }
}

 

I ran into the problem of my program running to fast, which is why I had to add “Start-Sleep –s 3”. This makes the program wait 3 seconds for google to reply.

The problem with a time delay is, lets assume the number is 1 Million. It would basically take me 34 days to reach the number.

I guess if I has a independent server, I could solve this and let it run for a year.