(NEXSTAR) -- Ahead of Saturday's Powerball drawing -- which would produce two jackpot-winning tickets -- the game's grand prize was an advertised $1.8 billion. But, after the dust settled and those winning tickets were confirmed, the prize was said to be about $13 million less than that.

So what changed?

When it comes to Powerball (and Mega Millions) jackpots, a winner gets to decide between receiving their prize as 30 annuitized payments or a one-time cash payout. The numbers you see advertised with the game represent those two options. The larger of the two, $1.787 billion with this jackpot, represents the annuitized option, while the smaller, $820.6 million in this case, is the cash value.

The cash value listed for the jackpot is, generally, how much is needed to fund the estimated j

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