The odds of turning a $2 Mega Millions ticket into a victor of any kind, including a $2 prize simply for matching the "Mega ball", are one in 24.
The estimated Mega Millions $548 million prize would be the largest jackpot in more than nine months.
The jackpot soared all the way to $654 million.
A Mega Millions $548 million jackpot awaits lottery players when numbers are drawn for Friday night.
The jackpot is the third-largest in the game's history and the odds of winning are 302,000,000 to one.
The top Mega Millions jackpots of all time are $656 million in 2012 and $648 million a year later.
Need a lucky spot to get your Mega Millions ticket? The payout was $309.2 million as the cash option.
The prize has been growing for 23 consecutive drawings since July 24.
Since 2000, the store has sold three multi-million-dollar jackpot tickets, the owners said, as well as dozens more winners of $1,000 or more.
Meanwhile, Powerball, which will be drawn on Saturday, has climbed to $314 million.