(Reuters) - A Michigan ticket holder has won a grand prize worth $310.5 million, according to the Powerball website.
The unidentified ticket-holder picked all six winning numbers in the latest multi-state drawing on Wednesday, lottery websites said.
The winning ticket was sold at a gas station in southern Michigan, the Michigan lottery said on its website.
It said the largest Powerball win and the largest prize ever won by a Michigan Lottery player was $337 million in 2012.
(Reporting by Suzannah Gonzales)