DES MOINES, Iowa (AP) — A giant lottery jackpot has grown a bit bigger.

The Mega Millions jackpot climbed from $502 million to $521 million ahead of Friday night’s drawing as more players bought tickets.

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It’s the nation’s 10th largest lottery jackpot. No one has matched all six numbers drawn since January.

It costs $2 to play the game and a willingness to ignore the fact that you’ll almost certainly lose. The odds of winning the jackpot are one in 302 million, though odds of winning smaller prizes are better.

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The $521 million figure refers to the annuity option, in which payments are made over 29 years. The cash option would pay $317 million.

Mega Millions is played in 44 states plus Washington, D.C., and the U.S. Virgin Islands.

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