No Winner in Powerball Lottery, Jackpot Now Estimated $700 Million

Saturday's jackpot will be the biggest in U.S. history.

The prize had surged from $450 million.

The payout would have had an estimated cash value of about $428.4 million, before taxes, according to the Powerball website. The final take-home amount depends on an individual's tax rate and the state and local taxes in their state of residence, Tracey Cohen, the interim executive director of the D.C. Lottery, told ABC News.

Winners are advised to sign the lottery ticket as soon as they get the chance. Two forms of identification, along with the signed ticket, are required to claim the prize, Cohen said.

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