That's because Audelia Ramirez used their birthdates to pick the winning numbers.
The California Lottery said Thursday that Ramirez claimed her $9 million prize Wednesday and said she'd love to buy a new house after living in a small apartment for years. The 73-year-old has six children and eight grandchildren.
Another winning ticket sold at Junior Liquor in San Diego remains unclaimed.
The winning numbers were: 22, 27, 32, 31, 2 and Mega 11.