NEW : GO 's jackpot is a record $ 500 million . It is played in 31 states and the District of Columbia . Why you keep playing the lottery . Largest win was $ 656 million in Mega Millions game in 2012 .
NEW : GO 's jackpot is a record $ 500 million . It is played in 31 states and the District of Columbia . Largest win was $ 656 million in Mega Millions game in 2012 .