A Bridgeport resident became a millionaire on April Fool’s Day.

And that’s no joke.

On Wednesday, Alba Castillo claimed a million dollar prize at CT Lottery headquarters in Rocky Hill.

Castillo won the the Mega Millions game by matching five numbers.

The odds of matching five numbers is 1 in 12,607,306.

Unlike some big winners, Castillo declined to be interviewed or profiled in the lottery’s “Winners Stories.”

Accordng to CT Lottery, there was only one $1 million prize in Connecticut from last Friday’s drawing.

The winning ticket at Spark City Smoke & Vape at 815 Lafayette Boulevard in Bridgeport.

Mega Millions is a multi-state game. Jackpots start at $40 million and grow by a minimum of $5 million per draw each time the jackpot rolls.

Drawings are held on Tuesday and Friday at 11 p.m.

Friday’s drawing has an estimated jackpot of $121,000,000 with a cash payout of $96.7 million.

The Connecticut Lottery publishes the list of prize winners of $10,000 or more on its web site. According to its rules: “Winners cannot remain anonymous. The CT Lottery will consider a winner's name, city/town, and the prize amount a matter of public record, unless the winner produces a valid protective order or Address Confidentiality Program authorization card.”

While most winners claim prizes using their individual names, some winners come forward using other legal entities (i.e., trusts, business partnership) to claim their prizes - and to better shield their identities. In those instances, the Lottery will promote the winner using that legal entity's name.