The largest jackpot in Mega Millions history was $656 million annuity value (with a cash option of $474 million) for the March 30, 2012 drawing, in which there were three jackpot-winning tickets; one each in Illinois, Kansas, and Maryland. All three tickets had been claimed by April 18, with each set of winners choosing the cash option of $158 million.[6]

The odds of winning the Mega Millions jackpot are 1 in 302.6 million, making them the highest odds of any other state or multi-state lottery game ever played in the United States. However, this means the jackpot can grow to surpass the billion-dollar mark with relative ease. The overall odds of winning any prize are 1 in 24, which is slightly better than that of Powerball, which are 1 in 24.87.

The minimum jackpot prize is a $15 million annuity disbursed in 30 payments over 29 years which is something many people would elect to do.The 30 annuity payments are not equal but based on an increasing rate schedule. For example, the first annual gross annuity payment on the base $15 million jackpot would be approximately $267,000 while the final payment would be approximately $834,000.

Once your ticket is purchased, scanned and uploaded into your account that ticket is yours. Legally and in every other sense possible. The same questions always pop up at this stage of the explanation to new time online lottery players and these doubts can be best explained in further detail in the article on the Iraqi Lottery winner but the gist of it is as follows: 
Mega Millions is notorious for paying out enormous sums to its winners, including 10 jackpots of more than $300,000,000 since it started.  It’s simple to play – pick five different numbers, ranging from 1 to 70, then your Mega Ball (any number from 1-25). Like every other lottery, your win will depend on how many numbers match up with the numbers drawn.
The 2015 changes extended the main ball pool to 69 balls, adding another ten numbers. However, at the same time, the Powerball pool decreased from 35 to 26. This means that although the overall odds of winning the jackpot have increased to 1 in 292 million, the overall odds of winning any prize have decreased to 1 in 24.87. The first draw incorporating the changes took place on October 7th and also saw an increase in the tier three prize (matching 4+1) climb to $50,000.

Two machines are used in each Mega Millions drawing. The model used for Mega Millions is the Criterion II, manufactured by Smartplay International of Edgewater Park, New Jersey. The balls are moved around by means of counter-rotating arms which randomly mix the balls. Individually, the five white balls, several seconds apart, drop through a hole in the bottom of the mixing drum.

These changes were made to increase the frequency of nine-figure jackpots; a Powerball spokesperson believed a $500 million jackpot was feasible (it became a reality within the year,[15]) and that the 1st $1 billion jackpot in US history would occur by 2012[16] Less than three months after the Powerball changes, Mega Millions' jackpot reached $656,000,000 despite remaining a $1-per-play game.[17] The random Power Play multiplier was retired for a set, fixed dollar amount payout.[18] The $25 million rollover "cap" (creating larger 5+0 prizes) was eliminated.

America's two biggest lottery games, Mega Millions and Powerball, have combined jackpots of nearly $900 million in drawings this week. The jackpot in the next Powerball drawing, to be held Wednesday, Jan. 3, is an estimated $460 million. The next Mega Millions drawing, where the jackpot is an estimated $418 million, takes place Friday, Jan. 5. A surge in ticket sales could boost both jackpots.

BoyleSports is operated by BoyleSports (Gibraltar) Limited, company number 112469, of registered address Suite 2B, 143 Main Street, GX11 1AA Gibraltar. BoyleSports is licensed and regulated by the Gambling Commission (Licence No 000-039469-R-319383-001) for customers in Great Britain, and licensed by the Government of Gibraltar and regulated by the Gibraltar Gambling Commissioner (RGL 083 & 084) for all other customers.

Reflecting common practice among American lotteries, the jackpot is advertised as a nominal value of annual installments. A cash value option (the usual choice), when chosen by a jackpot winner, pays the approximate present value of the installments. Mega Millions' previous format began on October 19, 2013; its first drawing was three days later. The current version of Mega Millions uses a 5/70 (for the white balls) plus 1/25 (for the "Mega Ball") double matrix to select its winning numbers.
Michael Sweeney, executive director of the Massachusetts State Lottery, apologized Thursday afternoon for the mix-up, saying it was the result of a “human error” but added that the lottery’s internal systems always had the correct information. He said those internal systems ran a routine report in the morning identifying Chicopee as the correct location, and lottery officials then checked to ensure that it was accurate.
This method specifically has faced criticism recently from a number of lottery organizers such as Camelot, the UK National Lottery organizers who are not happy with companies “selling tickets” (selling bets on outcomes of their established lottery draws) for prices sometimes even cheaper than Camelot themselves sells their tickets. This legal and corporate dispute looks set to continue for the foreseeable future, in the mean time you can continue to buy Powerball tickets online, only now you are aware of the key differences between the two business models.