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We haven't proven whether there are infinitely many twin prime numbers.

open Global / Unspecified, Global WS00291
Twin primes are pairs of prime numbers that differ by only two, and mathematicians strongly suspect there are infinitely many, but nobody has proven it. This remains one of number theory's oldest open questions.
Created at: 2026-07-20T09:57:00Z
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WS00291 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=291

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