nochance wrote:
One other thing:
"You need $584 million to cover 292 million combinations."
That's not feasible to do, but even if you could, you'd still lose money. The lump-sum value of the $1.3 billion prize is $800 million. Figure you take away 40 percent for taxes, you're left with $480 million. So you've already lost $100 million. And if you're not the only one with the winning numbers, and you have to split it, then you've lost even more money.
Of course, if you had $584 million to begin with, then you don't need the lottery, do you?
If you took the annuity payment, it would seem to be a good investment, because you would be getting more money back than you put in, over the 20 years of annuity payments.
However, the reality is that the opportunity cost makes it a bad investment, even if it is a positive return. If you have that much money, there are better investments with lower risk.
Guaranteeing you win by buying every ticket combination doesn't guarantee that you aren't one of 2, 3, or even 4 winners, in which case you would lose money by splitting the pot with them.