ChatGPT: Mega Millions and Powerball

As of my knowledge cutoff in October 2023, the Powerball lottery is the largest in the United States. Powerball is a multi-state lottery game offered in 45 states, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands. It is renowned for its massive jackpots, which have reached record-breaking amounts exceeding $2 billion. In November 2022, Powerball set a world record with a jackpot of approximately $2.04 billion.

Another significant lottery is Mega Millions, which is also a multi-state game available in 45 states, the District of Columbia, and the U.S. Virgin Islands. Mega Millions has had jackpots surpassing $1 billion, but Powerball holds the record for the largest jackpot to date.

Both lotteries offer substantial prizes and have a wide reach across the United States, but Powerball is generally considered the largest due to its record-setting jackpots and broader participation.