Mega-Sena Contest 2913: Overview The Mega-Sena lottery, one of Brazil’s most popular and lucrative games, held its Contest 2913 on Thursday, November 11th. With an astonishing prize of R$ 55 million awaiting the lucky winner, excitement was palpable among players across the country. How to Participate in Mega-Sena Participating in the Mega-Sena is straightforward. Players…