Lottery Number Generator

Unbiased generation backed by real numbers

The Lottery Number Generator creates games for Brazil's main Caixa lotteries, Mega-Sena, Lotofácil, Quina, Lotomania, Dupla Sena, Dia de Sorte, Timemania and +Milionária, using `crypto.getRandomValues`, the browser's cryptographic generator, to guarantee a truly unbiased draw. The highlight is the **Smart** strategy: a statistical engine that draws uniformly and then filters the game by criteria backed by academic research (Henze & Riedwyl, *How to Win More*; Cook & Clotfelter), a sum in the central range, a mix of odds/evens and high/low numbers, no sequences or progressions, and avoiding the patterns millions of people play (dates and birthdays, i.e. numbers up to 31). This **does not change your odds of winning**, every combination is equally likely, but it lowers the chance of splitting a prize with the crowds who picked the same obvious numbers (higher expected value). Because the base draw is random and the filters only discard games, every generation is practically unique: the tool never keeps recommending the same numbers. You also see statistics from the whole history (hot, cold, overdue, sum and evens), can fix or exclude numbers, avoid recent combinations and check a game against the latest result, all in your browser, no sign-up.

Choose, configure and generate

1. Pick the lottery in the first step, the tool opens with the right rules and statistics. Set how many games to generate and the numbers per game when the game allows it.
2. Leave it on the Smart strategy (recommended) or choose Random, Hot or Cold; if you like, open the advanced options to fix, exclude numbers or avoid recent combinations.
3. Tap "Generate games", copy each game individually or all at once, download the result and use the statistics and the checker to follow your numbers.

Use this tool on your site

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Sources and references for this tool

These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.

• Loterias CaixaCaixa Econômica Federal, Official operator of the federal lotteries and source of the results.
• Probabilidades das Loterias CaixaCaixa Econômica Federal, Official rules, prize tiers and odds for each game.
• How to Win More: Strategies for Increasing a Lottery WinHenze, N. & Riedwyl, H. (A K Peters), Basis for the smart strategy: draw under constraints and avoid popular combinations to maximize expected value.
• The Peculiar Scale Economies of LottoCook, P. J. & Clotfelter, C. T. / American Economic Review, Evidence that bettors choose numbers non-uniformly, creating underbet combinations.
• Patterns in manually selected numbers in the Israeli lotteryJudgment and Decision Making (Cambridge), Documents human biases in number selection (center of the slip, avoiding edges and adjacencies).

Frequently asked questions

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