Mega-Sena is Brazil's biggest and most popular lottery, run by Caixa Econômica Federal since 1996. With twice-weekly draws, jackpots that regularly exceed R$100 million, and some of the best jackpot odds of any large-pool lottery game in the world, Mega-Sena is the lottery of choice for Brazil's 215 million residents. Here's everything you need to know about Mega-Sena, how it works, and the best strategies for picking your numbers.
How Mega-Sena Works
Pick 6 numbers from 1–60. Draws are held every Wednesday and Saturday. The minimum ticket picks exactly 6 numbers; players can optionally pick up to 15 numbers on a single ticket (creating multiple 6-number combinations) for higher cost. Prizes are paid in Brazilian Reals and are subject to 30% Imposto de Renda (income tax) for all prize tiers.
| Prize Tier | Match | Odds | Prize Pool % |
|---|---|---|---|
| Sena (Jackpot) | 6/6 | 1 in 50,063,860 | 35% |
| Quina | 5/6 | 1 in 154,518 | 19% |
| Quadra | 4/6 | 1 in 2,332 | 19% |
Mega-Sena jackpot odds of 1 in 50,063,860 are better than US Powerball (1 in 292M) and EuroMillions (1 in 139M), despite regularly producing jackpots of R$100–200+ million. When converted, large Mega-Sena jackpots have been equivalent to $30–50 million USD.
Mega-Sena da Virada: The New Year's Super Draw
Mega-Sena da Virada is a special draw held every December 31st — New Year's Eve. The jackpot accumulates throughout the year from unawarded jackpots and is guaranteed to be won in the da Virada draw (if no one matches 6, the prize cascades down to 5-match winners, then 4-match winners). The 2022 da Virada jackpot reached R$541 million — the largest lottery prize in Brazilian history. Hundreds of millions of tickets are typically sold for this single draw.
Brazil's Other Major Lottery Games
Lotofácil
Lotofácil is Brazil's most popular lottery by ticket volume. Pick 15 numbers from 1–25. Draws are held daily (Monday–Saturday). The unusual format — picking 15 from a pool of only 25 — creates jackpot odds of 1 in 3,268,760, making it far more winnable than Mega-Sena. The tradeoff is smaller jackpots (typically R$1–5 million). Many Brazilian lottery players buy Lotofácil tickets daily for the better win probability.
Quina
Quina draws daily Monday–Saturday. Pick 5 numbers from 1–80. Jackpot odds are 1 in 24,040,016. Quina jackpots roll over when not won and regularly accumulate to R$100+ million during long streaks. The daily draw schedule means Quina jackpots can grow very rapidly — sometimes doubling in a week.
Strategy 1: Avoiding Birthday Clustering in Mega-Sena
Mega-Sena's pool runs from 1–60. Many Brazilian players use significant dates (birthdays, anniversaries) which concentrates picks in 1–31 for day numbers and 1–12 for month numbers. Numbers from 32–60 are systematically underplayed in Brazilian lottery tickets. A balanced Mega-Sena selection should include at least 2 numbers above 35 to avoid this concentration trap.
Strategy 2: Lotofácil Frequency Analysis
Because Lotofácil draws daily and players pick 15 of 25 numbers, the effective number pool is very small. Every number from 1–25 gets drawn in the majority of draws (since you're picking 15 out of 25 — a 60% coverage per ticket). Hot and cold analysis in Lotofácil is less about individual numbers and more about which specific combinations of 15 appear together most frequently.
Strategy 3: Quina's 5-from-80 Format
Quina's 1–80 pool is one of the largest of any major draw game. Picking 5 numbers from 80 means the field is extremely wide — clustering all 5 in a narrow range (say, 1–20) leaves most of the pool uncovered. A distribution strategy should ideally have at least one number from each of four 20-number ranges: 1–20, 21–40, 41–60, 61–80.
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