A nice chunk of change: Lottery jackpots totaling more than $520m up for grabs this week

What if you could win both?

Two lottery jackpots are up for grabs this week. The prizes add up to more than half a billion dollars, the Massachusetts Lottery said.

But don’t count on getting doubly lucky.

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The only thing more astronomical than the amount won by a double winner would be the odds against winning both at the same time, which would be about one in 31 quadrillion (based on the 175.7 million chance of winning the Mega Millions jackpot multiplied by the one in 175.2 million chance of winning the Powerball jackpot).

Still, someone — at least two someones, that is — could get lucky big-time this week.

If there’s a jackpot winner tonight at 11 p.m. in the Mega Millions drawing, the prize will be $170 million. A $350 million prize awaits the winner of the Powerball drawing at 10:59 p.m. Wednesday, the Lottery said.

Mega Millions tickets, at $1 each, are sold in 42 states. The game’s jackpot reached its record-high at $656 million in March 2012. Powerball’s $2 tickets are sold in 43 states; it reached its record jackpot at $588 million in November 2012, the Lottery said.