A EuroMillions jackpot of greater than £83.4m is the biggest lottery prize to go unclaimed for week, a lottery spokesman has stated.

A ticket holder who bought their slip in a store is but to say the £83,474,081 prize from a draw on 24 January.

The thriller winner matched all 5 major numbers – 02, 11, 19, 30 and 49 – in addition to the Fortunate Star numbers, which had been 03 and 08.

A spokesperson for The Nationwide Lottery operator Allwyn stated it was “very uncommon” for such a big prize to go unclaimed for days, including that it was the “greatest prize to have gone unclaimed at this stage”.

The place the pink ticket was bought has not but been revealed, however Allwyn stated it might undertake “bespoke exercise” there if the prize continues to be not claimed by subsequent Friday.

“It’s in all people’s curiosity that this prize is claimed,” the spokesman added.

Andy Carter, senior winners’ adviser at Allwyn, stated: “I can not consider there’s one fortunate ticket holder on the market who hasn’t claimed this unbelievable EuroMillions jackpot prize – there are 83,474,081 causes for them to verify their ticket right away.

“We’re urging all EuroMillions gamers to verify their paper tickets to see if they’re our lacking multi-millionaire.”

In response to The Nationwide Lottery web site, there are at present 9 different EuroMillions prizes that may nonetheless be claimed by UK ticket-holders, although the biggest is value £1m.

The most important EuroMillions prize ever to not be claimed by a UK ticket holder was £63.8m in June 2012.

Ticket holders have 180 days from the day of the draw to say their prize.