The Mega Millions jackpot is displayed at a convenience store Wednesday, Oct. 17, 2018, in Chicago. The Mega Millions jackpot is now up to $900 million. (Nam Y. Huh/AP)

The Mega Millions jackpot is displayed at a convenience store Wednesday, Oct. 17, 2018, in Chicago. The Mega Millions jackpot is now up to $900 million. (Nam Y. Huh/AP)