Mega Millions, which originally was played in 12 states, expanded its reach alongside Powerball after a 2010 licensing agreement. Both games are now played in 43 states, plus the District of Columbia and the U.S. Virgin Islands.
While Mega Millions remains $1 a ticket, five of the six numbers needed for a jackpot win now range from 1 to 75, instead of the previous 1 to 56. The sixth number, which is the gold Mega Millions ball, is now from 1 to 15 in the revamp, instead of 1 to 46. The changes decreased the odds of winning the Mega Millions jackpot from about 1 in 176 million, which is nearly the odds of winning Powerball’s jackpot, to roughly 1 in 259 million.