What would the lump sum be for Mega Millions?

After state and federal taxes, the lump sum of the latest Mega Millions jackpot will come out to between $607,000,000 and $687,724,000—and that's not including what the winner will have to pay come tax season. But if they opt for the annuity plan they'll end up with $1 to $1.2 billion after 29 years.
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