The numbers in Friday night's multi-state Mega Millions draw are 8, 12, 18, 30, 40 and the Mega number is 4.
The estimated jackpot is $39 million, a California Lottery official said.
The drawing was the fifth since the last time a ticket with all six numbers was sold.
The odds of matching all five numbers and the Mega number is 1 in 175,711,536, according to the Mega Millions website. The overall chance of winning a prize is 1 in 40.
The Mega Millions game is played in 42 states, the District of Columbia and the U.S. Virgin Islands.