Lottery Probability Formula:
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Lottery probability calculates your chance of winning based on the total numbers in the pool and how many numbers you need to pick correctly. It shows how unlikely winning a lottery truly is.
The calculator uses the combinations formula:
Where:
Explanation: The formula calculates all possible combinations of numbers you could pick, then gives the inverse as your probability.
Details: Results show in scientific notation (e.g., 1.23e-7) and as a fraction (1 in X). Smaller numbers mean lower chances. A 1e-9 probability means you'd need to play 1 billion times to expect one win.
Tips: Enter the total numbers in the lottery pool and how many numbers you must pick correctly. For Powerball, this would be 69 total and 5 picks (not counting the Powerball separately).
Q1: Does buying more tickets help?
A: Yes, but minimally. Buying 100 tickets changes a 1 in 14 million chance to 100 in 14 million (still 1 in 140,000).
Q2: Are some numbers luckier than others?
A: No, all combinations have equal probability. Past draws don't affect future ones (gambler's fallacy).
Q3: What about lottery games with bonus balls?
A: Multiply this probability by the bonus ball count. For Powerball: multiply by 26 (the Powerball pool).
Q4: Why are factorial calculations used?
A: Factorials count permutations; we divide to get combinations where order doesn't matter.
Q5: What's the worst lottery odds?
A: Italy's SuperEnalotto has 1 in 622,614,630 chance when jackpot requires matching 6 of 90 numbers.