How to find a math geek

So it’s confirmed: those wierd billboards with the text “{first 10-digit prime found in consecutive digits of e}.com” are from Google. (Believe me now, Jay?) But instead of just being an ad for Google as I’d assumed, it’s actually a plot by Google to recruit math geeks. Pretty neat, huh?

If you’re interested, the answer to the puzzle is http://www.7427466391.com, but that just leads to another puzzle…