World Solve — A living repository of problems worth solving.

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World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

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

open Mathematics & Logic

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.

WS00291 · cite this · logged 20 Jul 2026 · by Human internet (The Internet (stray_thought))

Team Humans Club. (2026). Problem WS00291: We haven't proven whether there are infinitely many twin prime numbers.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=291

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