Yes - this is known as "pooling" or "syndication". A group of family members, friends, or colleagues put funds together to purchase more tickets, and then equally share out any prizes they win. Bear in mind, one nominated person will have to act as the ticket holder, and it's important that they are reliable and trustworthy. You should also have a binding legal agreement.

Bob Bolduc, founder of Pride Station & Stores, where the prize was actually purchased, said the multimillion-dollar winning ticket was sold at about 2:30 p.m. Wednesday. He said that in the past year the convenience store chain has sold a handful of winning tickets worth $1 million or more, and he suspects that will “resonate with a lot of lottery buyers.”
Some lotteries sell Powerball® tickets over the Internet, but the service is only available to residents of that jurisdiction. The sale of Powerball tickets over the Internet or by mail across jurisdictional borders is restricted. Lotteries may refuse to pay out prize money on Powerball tickets purchased on any website other than their own. Please contact your lottery with any further questions.
In the aftermath of the attack on the World Trade Center on September 11, 2001, the legislature in Albany, fearing a monumental loss of revenue, passed legislation the following month, which was signed by Governor George Pataki, which included joining a multi-jurisdictional lottery game. Around the same time, for entirely different reasons, Ohio's governor also gave the green light to joining a multi-jurisdictional game. Both lotteries opted to join The Big Game, which, at the time, was offered in seven states. The added populations of the two new jurisdictions, in turn, led to a larger double matrix. The first machine continued to hold white 52 balls, while 16 gold balls were added in the second, meaning there were 52 numbers to pick from in both parts of each $1 game. On May 15, 2002, the game was renamed The Big Game Mega Millions; shortly after, it became just Mega Millions. Except for the 2010 cross-selling expansion, this was the only time The Big Game or Mega Millions simultaneously added more than one member.
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.
Two identical machines are used for each drawing, randomly selected from four sets. The model of machine used is the Halogen, manufactured by Smartplay International of Edgewater Park, New Jersey. There are eight ball sets (four of each color); one set of each color is randomly selected before a drawing. The balls are mixed by a turntable at the bottom of the machine that propels the balls around the chamber. When the machine selects a ball, the turntable slows to catch it, sends it up the shaft, and then down the rail to the display.

Prizes must be claimed in the jurisdiction where the winning ticket was purchased. Players can generally claim a prize up to $600 at any licensed lottery retailer in the jurisdiction where they bought the ticket. Prizes over $600 can be claimed at some lottery offices, depending on the amount, and also at lottery headquarters. Please contact your lottery with any further questions.
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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