The record 98m euro (£87m) EuroMillions jackpot has not been won by any players, organisers have said.
This means next week's top prize is an estimated 123m euros (£109m). The jackpot, last claimed on 20 March, has now rolled over six times.
The chance of a ticket holder winning next week's jackpot is 76m to one, a National Lottery spokesman said.
In Friday's EuroMillions draw 16 players won some £211,000 for matching five numbers and one lucky star.
The UK record for winning a jackpot is currently held by Angela Kelly from Glasgow, who won £35.4m (40m euros) on EuroMillions in August 2007.