Lottery officials said the winning ticket from Sunday’s drawing was sold at the Giant Eagle on McKnight Road in Pittsburgh.
The ticket matched all five balls drawn — 1, 4, 18, 29, 31 — to win the prize.
Lottery officials said the winning ticket must be claimed and validated.
The winner has one year from the game’s end-sale date to do that before the prize expires.
The store will receive a $10,000 bonus for selling the winning ticket.