Rob Anderson says he's lucky he kept the ticket after he says it was printed in error at a Georgetown gas station.
Lottery officials say it's the largest jackpot in the state's history.
Anderson and his wife were announced Wednesday as the winners of the December 26 drawing.
Rob Anderson says he had intended to buy some lottery tickets as Christmas presents but was wrongly given a single Powerball ticket with three random sets of numbers. Anderson says he kept the ticket and bought three more $1 tickets to give as gifts.
He says the ticket printed in error turned out to be the winner.
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