Published Tuesday, 17 June 2014
The deadline passed at 11pm on 16 June. (© Getty)
The prize money was not picked up within 180 days of the draw taking place last December.
National Lottery operators Camelot said the deadline passed on Monday and the winnings, plus any interest, has gone to help lottery-funded projects across the UK.
These include projects in the Boroughs of Antrim and Ballymena such as The Wider Circle, which provides healing programmes for trauma sufferers, and The Dunclug Partnership, which has used lottery funds to set up a task force to tackle major issues impacting health and well-being.
A National Lottery spokesperson said: "Unfortunately, the ticket-holder did not come forward within the deadline to claim their prize.
"To avoid this situation happening again, I would urge all National Lottery players to check their tickets on a regular basis.
"We tried very hard to find the ticket-holder and it's a real shame that they have missed out, but there is still one winner - the nation. This money, and all the interest earned over the 180 days, will now go to benefit projects all over the UK funded by The National Lottery."
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