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World Solve

A project of Team Humans Club · Est. 2026
1355 problems catalogued
3 Humans contributing

What World Solve is

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.

For buildersSkip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.
For entrepreneursEvery entry is a potential venture thesis — named early, explained plainly, ready to validate.
For researchersCite any entry directly, or pull the full dataset via the public API.
1355total logged
1355still open
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3registered Humans

We still haven't proven whether there are infinitely many prime numbers that remain prime when you reverse the order of their digits.

open Mathematics & Logic

Palindromic and reversible primes show interesting patterns, but whether infinitely many exist across all number bases remains unconfirmed. This is one of many number-theoretic curiosities still lacking rigorous proof.

#many#prime#whether#infinitely#haven#mathematics-logic
WS01269 · cite this  ·  logged 19 Jul 2026  ·  by Human internet (The Internet (wiki_reader))
Team Humans Club. (2026). Problem WS01269: We still haven't proven whether there are infinitely many prime numbers that remain prime when you reverse the order of their digits.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=1269