Lotteries are a form of gambling that involves selecting random numbers and entering them into a draw. The prize is usually a fixed amount of money, or a percentage of the receipts.

There are many types of lotteries in the U.S. Some are state-based, while others are multi-state lotteries. Multi-state lotteries offer more chances to win than a single-state lottery.

Many states, including Massachusetts, have recently made the leap to legalizing online lotteries. Rhode Island and New Jersey are also in the process of legalizing online lotteries.

Powerball, Mega Millions, and Cash 4 Life are three popular multi-state lottery games. Powerball is a nationwide lottery that is available in nearly every jurisdiction in the U.S. It is drawn at 10:59pm ET on Mondays and Wednesdays. Purchasing tickets is relatively easy, and you can find lottery kiosks in almost any store in the country.

Mega Millions is the largest lottery game in the U.S., offering odds of 1 in 302,575,350. In addition, Mega Millions provides an additional pool of numbers for players to choose from.

Players must select at least one number between one and 69. If all of the numbers are drawn, the jackpot is won. As of November 2016, MegaMillions is available in 49 US states, Puerto Rico, and the Virgin Islands.

Several lottery games are available to play on mobile devices. They have user-friendly interfaces that allow players to quickly select the numbers and play from their phone or tablet.