On Oct 4, 2015, the Powerball format changed again; the white-ball pool increased from 59 to 69 while the Powerball pool decreased from 35 to 26. While this improved the chance of winning any prize to 1 in 24, it also lengthened the jackpot odds to 1 in 292,201,338.[19] The 4+1 prize became $50,000; the 10x PowerPlay became available in drawings with a jackpot of under $150 million.[20] Three months later, the format produced a $1.5 billion jackpot, double the previous record, after 20 consecutive rollovers.[19][21]
Powerball pays out the largest lottery jackpots in the world. Simple as. The biggest of the bunch arrived in Jan 2016, when three ticket-holders shared a prize fund worth $ 1.58 Billion. For your chance to win a world-beating lotto prize, pick 5 from 69 plus the Powerball and bet on one of our Thursday or Sunday night draws. Highest ever jackpot: $ 1.586 Billion
Before the agreement, the only places that sold both Mega Millions and Powerball tickets were retailers straddling a border; one retailer on the Sharon, Pennsylvania/Masury, Ohio border sold both Mega Millions (via the Ohio Lottery) and Powerball (Pennsylvania) before the agreement and continued to be the only retailer to sell tickets for both lotteries.[12]
Presumably due to their experience with the Power Play option for Powerball, all 23 lotteries joining Mega Millions on January 31, 2010 immediately offered Megaplier to their players. The Megaplier continues to be drawn by Texas Lottery computers, as California does not offer the multiplier. Montana, offering Powerball before the expansion date, became the 24th lottery to offer the Megaplier, followed by Nebraska (the 25th), Oregon (the 26th), Arizona (as the 27th) and Maine (as the 28th lottery to offer the Megaplier option). After Colorado and South Dakota joined Mega Millions, this raised the number of lotteries offering the Megaplier to 37.
Under the current version's regulations (which began October 28, 2017 with the first drawing October 31) for Mega Millions, the minimum Mega Millions advertised jackpot is $40 million, paid in 30 graduated yearly installments, increasing 5 percent each year (unless the cash option is chosen; see below for differences by lotteries on cash/annuity choice regulations.) The jackpot increases when there is no top-prize winner[1] (see below for information on how the Mega Millions jackpot is funded.) As of December 13, 2017, there has yet to be a jackpot winner under the current Mega Millions format, including wagers for the newly created Just the Jackpot option.

The US Powerball game, arguably one of the most popular and widely-played games in the United States, is a shared jackpot game which is co-ordinated by an NPO formed by an agreement between the various state lotteries. The US Powerball game has become renowned for its impressive $40 million starting jackpot, with the potential of yielding nine-figure jackpot wins.
The Mega Millions is an American lottery game which is played in multiple jurisdictions across the country (and indeed, the world), with the first draw taking place in 2002. It also holds the proud title of giving off the third largest recorded lottery win in American history. In March 2012, a $656 million annuity value (cash value $474 million) jackpot was won and split three ways due to three winning tickets.

The two different methods, both offer you, the player, the same user experience and the only difference is in the back end of how the online lottery ticket provider works. The two methods that online lottery sites use differ in one key way; They either have agents and employees all over the world that physically purchase tickets on behalf of clients or, the more recent phenomenon is when companies essentially take out an insurance policy on every ticket which is tied to the size of the jackpot. This is the difference between you playing the lottery online and betting on the lottery online*. In the latter option you are, de facto, not playing the US Powerball online but rather you are placing a bet with an insurance company on the outcome of the corresponding Powerball draw. 
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