there is also official syndicates (“bolão“) by the caixa. these syndicates allow you to create a larger bet and share it between your family and / or friends in various share amounts / fractions (“cotas”). for mega-sena, the minimum syndicate bet can be r$10.00, with the minimum share of the being r$4.00, and the number of participants in the syndicate can be between a minimum of 2 and a maximum of 100.