The drawing was Friday at 11 p.m.
The winning numbers are: 65, 53, 23, 15, 70, and 7.
The prize is the second-largest jackpot in U.S. history, behind only a $1.6 billion Powerball prize won in 2016.
No one has matched all six numbers and won the Mega Millions grand prize since July 24. That reflects the game's long odds , at one in 302.5 million.
Mega Millions is played in 44 states, plus Washington, D.C., and the U.S. Virgin Islands.