Keep in mind what William Atwood write in his book called The Lottery Solution.
The Lottery terminals are programmed NOT to spit out all the possible combinations there are in the MM game. So the 'quickpick" you buy today in your state could be the same one issued tomorrow in another state.
But when the jackpot reaches $200+ million, more of those combinations are "released" = made available for purchased in quick pick form. (Another reason to place more trust in a system than a computer that won't issue every possible combination possible.)
Perhaps this explains why, to the best of my knowledge, there have been no jackpots of $400 million or higher.
"Always tell the truth. That will astonish some and gratify the rest."
- Pres. Harry S. Truman