The jackpot is now among the top 10 largest in history.
Lottery officials say a winning ticket is worth an estimated $638.8 million. That's the seventh largest lottery jackpot in U.S. history, with an estimated lump sum payout of nearly $381 million before taxes.
Our odds of winning are 1 in 292 million.
The last time someone won the Powerball lottery was the day after Christmas.