Yeah, but if there were other winners (in this case 3 separate winners), then you'd have to share the winnings. In this instance, that would still leave you with $2 million, but ordinarily you would be in the hole.
Well, there are two potential issues here. For one, there are many weeks when no one wins. For instance, the drawing before was for over $300 million, and no one won it (obviously) so doing it thern would have guaranteed you a single victory.
Secondly, you wouldn't just win the jackpot. You'd also have every possible combination of the lower payouts, too.
Secondly, even if you had a team of 20 people working around the clock, filling in bubbles and filling in every combination possible 147 million times, the contest would be over 8 months ago by the time you finish.
I wouold suggest starting the process early. Once you get the self-pick tickets filled in, you can use them at any time, so you just need to find people who are willing to help you fill them in, or just do nothing else during your down time for a year, and you'll have all the possible combinations.
The hard part is getting all of them printed. You'd almost certainly need to spread out your purchases, and with three days between drawings, you'd have to work fast, smart, and with help. You'd probably need to coordinate with the owners of a few establishments (they get money for printing a winner so they have some incentive to work with you) to have a stack of those tickets dropped off and printed, then picked up later.
But beyond that, you'd need to have the money to pay for them all, in cash. That means a loan, and then some rather large stacks of money being transported.
All in all, it would be quite the undertaking, but if you could pull it off, you'd be famous, and rightfully so.