CHICAGO - The Mega Millions jackpot has grown to an estimated $400 million for tonight's drawing.
The jackpot has been rolling since January 3.
The biggest lottery prize in the U.S. was a $656 million dollar Mega Millions jackpot in 2012. The estimated $400 million jackpot will be the sixth largest lotto jackpot ever offered in the United States.
Mega Millions changed its rules in October to help increase jackpots by lowering the odds of winning the top prize. That means the chances of winning the jackpot are now about 1 in 259 million. It used to be about 1 in 176 million.
The cash value for Tuesday night's drawing is approx. $224 million.