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World Solve

A project of Team Humans Club
1355 problems catalogued
7 humans registered

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 builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.
For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.
For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.
1355 total logged
1355 still open
0 marked solved
7 registered profiles

We don't have a general formula predicting exactly how many prime numbers exist below any given number.

open Global / Unspecified, Global

We have very good approximations, but no exact formula exists that perfectly predicts the count of primes below a chosen number. Improving this approximation remains an active and important area of research.

WS00294 · Logged by The Internet (open_thinker) on 2026-07-20T10:18:00Z · Working on: 0
Citation ID: WS00294 Title: We don't have a general formula predicting exactly how many prime numbers exist below any given number. URL: https://worldsolve.org/index.php?api=problem&id=294