It's the largest Mega Millions prize ever offered on the last draw day of the year. The drawing will take place at 10 p.m. Friday.
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There was no jackpot winner for the drawing on Christmas. The winning numbers for that drawing were: 2-8-42-43-50 Mega Ball: 6.
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The $348 million jackpot comes with a cash option for $210.2 million. It has been rolling over since October.
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Mega Millions jackpots start out at $40 million and roll over if there is no jackpot winner.
Tickets are sold in 44 states plus the District of Columbia and the U.S. Virgin Islands.
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In Thursday's Powerball drawing, someone in New York won the $294 million jackpot.