Someone in Illinois won the $1.337 billion Mega Millions jackpot—the third-largest lottery prize in U.S. history

One lucky lottery ticket-buyer in Illinois may soon be a billionaire, following Friday night's $1.337 billion Mega Millions lottery drawing.

According to lottery officials, the winning numbers — 13, 36, 45, 57 and 67 and a gold Mega Ball of 14 — match a single ticket sold at a Speedway gas station in Des Plaines, Illinois, roughly 17 miles northwest of Chicago.

The winner has yet to claim the prize, Harold Mays, director of the Illinois Department of the Lottery, said at a news conference on Saturday.

"We don't know whether or not they even know that they won a prize," Mays said. "So, I encourage everybody to check your ticket."

The jackpot ranks as the third-highest lottery prize in American history, and its winner — who likely paid around $2 for the ticket — stands to either gain $780.5 million as a cash lump sum or receive payments in an annuity over the next 30 years.

If the winner chooses the more popular lump sum option, which "Shark Tank" investor Kevin O'Leary recommends, he or she will have to account for a mandatory 24% federal tax withholding.

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