Wikipedia
Eurojackpot is a transnational European lottery launched in March 2012. As of October 13, 2015, the countries participating in the lottery are in alphabetical order: Croatia, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Iceland, Italy, Latvia, Lithuania, the Netherlands, Norway, Slovakia, Slovenia, Spain and Sweden.
The jackpot starts at €10,000,000 and can roll over up to €90,000,000. Playing the Eurojackpot costs €2 per line. The goal is to match 5 correct numbers out of 50 plus another 2 supplementary numbers out of another 10; the odds of winning the jackpot are 1:95,344,200. There are 12 tiers of prizes for Eurojackpot.
The lottery draw takes place every Friday at 21:00 local time in Helsinki. The evaluation of the winning lottery tickets is done in Germany and Denmark.