The Lotto Jackpot reaches a massive €7m tonight.
The jackpot has been rolling over since December 13th.
It was last won on December 10th by "The Lotties" - a syndicate of 17 nurses from Wexford General Hospital who shared more than €2.8m.
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People can play the lotto in any agent store or online before 7:40pm tonight to be in with a chance to win.
In last Wednesday's Lotto draw, 41 players were just one number away from winning the jackpot of €6,287,189.
One of those players also matched the bonus number to win a prize of €25,000.