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o(1) statistical prime approximation
(lemmy.blahaj.zone)
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this post was submitted on 22 Feb 2026
832 points (99.2% liked)
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Correct. Not are why people are upvoting. If 10% of numbers are prime in a range, and you always guess false, you get 90% right. If you randomly guess true 10% of the time, you get ~80% right.
More random means more towards 50% correctness.
And 2,3,5,7 are primes of the first numbers, making always false 60% correct and random chance 50%