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Atlanta • A Georgia woman who bought just one ticket and used family birthdays and lucky No. 7 to choose her numbers was one of two winners of the $636 million Mega Millions jackpot, the second largest in U.S. history.

Lottery officials in Georgia identified the winner as Ira Curry, of Stone Mountain, which is east of Atlanta. Curry will take a lump sum of about $120 million after taxes, Georgia Lottery chief Executive Debbie Alford said.

"She has not decided how she'll spend those winnings," Alford said at a news conference, which Curry did not attend.

The other winning ticket was sold at a gift shop in San Jose, Calif. The winner there has one year to come forward.

Curry was driving to work Wednesday when an announcer on the radio talked about the Mega Ball being 7. Curry knew that was her Mega Ball number, so she called her daughter to check the ticket.

"Between joyful tears and laughter on the daughter's part, she relayed to her mother that her mother had won the lottery," Alford said.

Alford wouldn't say where Curry worked or how old she was. A person who answered the phone at a listing for Curry said, "We are not interested in any publicity, thank you for calling" and hung up.

Curry, her husband and other family members came to the lottery headquarters to claim the prize, surprising lottery officials who thought the winner may take some time before coming forward.

Alford said the news didn't hit home for Curry until lottery officials told her congratulations.

"She said she was just in a state of disbelief," Alford said.

The winning ticket in Georgia was sold at a newsstand in Buckhead, a financial center of Atlanta.