A lucky winner in Massachusetts is taking home the $758.7 million Powerball jackpot.

Experts typically advise lottery winners to take their time before claiming the prize, and to stay anonymous if possible. But Mavis L. Wanczyk, a 53-year-old hospital worker from Chicopee, Mass., stepped forward Thursday to claim her prize — the largest individual win in U.S. lottery history.

The winning numbers for Wednesday's drawing were 6, 7, 16, 23 and 26, with a Powerball 4. The jackpot has now reset to $40 million.