The Irish Lottery draw takes place on Wednesday and Saturday. Six main numbers and a bonus ball are selected from the same pool of balls (it is not possible to have a bonus ball that has already been drawn as a main number). The numbers that can be selected range from 1 to 47.
Betting on the Irish Lottery is popular in UK as most bookmakers offer true odds on this - i.e. odds that closely reflect the probabilities involved and do not made a large deduction for tax and charity contributions. You also have the flexibility of betting on the six or seven number draw (i.e. including the bonus ball).