Powerball will match a record for lottery drawings Saturday night with a stretch of more than three months without a jackpot winner.

It’s that string of futility that has enabled Powerball’s top prize to reach $1.23 billion, the 8th largest in U.S. lottery history. And it’s a sign that the game is operating exactly as designed, with long odds creating a massive jackpot that entices people to drop $2 on a ticket.