http://www.cnn.com/2008/TECH/09/27/prime.number.ap/index.html
I can't tell you how excited I am about this. Maybe it's the 90+ hours weeks talking, but man, a 13 million-digit prime number. If it were published as a book, I would totally buy it.
To you trivia interested reader, how many pages would a book need to be to contain a 13 million digit number?