The odds of winning the jackpot are 1 in 302 million, according to lottery organizers, and the last Mega Millions jackpot was won in Texas on Sept. 10 for $810 million. Mega Millions is played in 45 states as well as Washington, D.C., and the U.S. Virgin Islands. Friday’s drawing is at 8 p.m.

The Mega Millions jackpot has climbed to $1.15 billion ahead of Friday's drawing, making it the fifth-largest prize in the game's history. But how much you would actually take home could be less than half that,