Powerball jackpot rises to $635 million ahead of Saturday night's drawing

The Powerball jackpot got even bigger Friday as officials raised the estimated payout to $635 million ahead of Saturday night's drawing.

The grand prize was increased from an earlier estimate of $620 million, reflecting a surge in sales from players attracted by the potential payoff. The more people who buy tickets, the larger the prize grows. 

The jackpot is now the 10th largest ever won, though still far less than the record $1.586 billion prize set in 2016.