The winner has not yet claimed the prize.
The $521 million jackpot has been sold in New Jersey.
Mega Millions says a single winning ticket was sold in Friday night's drawing.
The winning numbers were 11, 28, 31, 46, 59 and Mega Ball 1.
It is not clear where exactly the ticket was sold, but it was the nation’s 10th-largest lottery jackpot.
The cash option for the win would pay $317 million or the recipient could receive payments over 29 years.
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