To play EuroMillions, you have to pick five numbers from one to 50 and two Lucky Stars from one to 12.
Draws happen every Tuesday and Friday and for every EuroMillions ticket bought, players are automatically entered into the UK Millionaire Maker game, with a guaranteed £1million UK winner in every draw.
The prizes range from £2.50, which is the value of one ticket, to the jackpot value, which is £24m tonight.