A lucky Illinois lottery player just hit the Mega Millions jackpot.

According to the Illinois Lottery , a jackpot winning Mega Millions ticket from the drawing on Tuesday, March. 25, was sold at a Casey's General Store, located at 70 S. Somonauk Rd. in Cortland, in far western DeKalb County.

The ticket matched all five Mega Millions numbers -- 1, 5, 17, 39, 62 and 8 -- plus a Megaplier to win a whopping $344 million.

According to the Mega Millions website, it was the only jackpot-winning ticket sold as part of Tuesday's drawing. The next drawing, with an estimated jackpot of $20 million, takes place at 10 p.m. CT Friday.

The big winner comes just before major changes take place for the lottery game, with a "new version" of Mega Millions set to go into effect in April that features ticket price increases, better odds and more frequent prizes, officials said in news release.

Breaking down the big Mega Millions changes to know about

Starting with the April 8 drawing, ticket prices will increase from $2 to $5.

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The game also comes with a new prize matrix, which is broken down here .

The popular, $1 "Multiplier" add-on feature is also going away, according to the release. Instead, tickets will come with a "built-in multiplier." The "Just the Jackpot" feature that was available in some jurisdictions will also be retired under the new rules, the release said.

When do the changes take effect?

According to the release, the final drawing of the current version of Mega Millions is set to take place Friday, April 4. The first drawing under the new prize structure, officials said, will be held at 10 p.m. CT Tuesday, April 8.

"Unless someone wins the jackpot on the April 4, 2025 drawing, the jackpot from the current game will roll into the new game and continue to grow with ticket sales from the new game," the release said.

Mega Millions and its lottery counterpart Powerball are sold in 45 states, as well as Washington, D.C., and the U.S. Virgin Islands. Powerball also is sold in Puerto Rico.

Powerball has said it had no plans to increase prices.