If you haven't bought a ticket, chances are you're not a $640 millionaire. The winning numbers are: 46, 23, 38, 4, 2, Mega Ball 23. Nobody knows who has those numbers yet, but at least three tickets were sold in Maryland's Baltimore County, Kansas, and Illinois matching the largest lottery jackpot in U.S. history. The previous record was $390 million, which was split between two winners in 2007.
JACKPOT! Kevork Djansezian / Getty Images