The most recent big Mega Millions win — $536 million in July 2016 — was the third largest in the game’s history, and the seventh largest in any U.S. lottery. It was the most ever awarded to a single Mega Millions winner, and the highest cash-value jackpot awarded to a single winner in a U.S. lottery.
At $356 million, the Powerball jackpot is the 14th largest in the game’s history, and the 21st largest in U.S. lottery. (Cracking the top 10 for Powerball would require the jackpot to exceed the $425.3 million prize the game awarded to a single winner in February 2014.)
Of course, the odds of winning either game are slim (see graphic below), and winning both the Powerball and MegaMillions pools, even more unlikely. An analysis from Allstate’s data science team put the odds of snaring both at roughly 1 in 75 quadrillion.