The winners have 180 days to claim their prizes, either by mail or at a Lottery District Office.
The $32 million ticket matched all six numbers: 46, 17, 6, 44, 33, and Mega number 18.
The other two tickets - worth $39,446 each - matched all of the numbers except the Mega number.
The winning tickets were purchased at Model Liquors, 275 E. Lewelling Blvd., in San Lorenzo; Chestnut Market, 1202 Chestnut St., in Alameda; and Discount Liquor, 1125 Arnold Dr. No. A, in Martinez.