Will the Collatz Conjecture (3x+1 problem) be solved before 2030?
As of 08:16 UTC on 11 Oct 2026, Manifold prices “Will the Collatz Conjecture (3x+1 problem) be solved before 2030?” at 38%. The market has no Manifold-reported volume in the last 24 hours. pdata.world compares it with 24 related events on Manifold, Kalshi and Polymarket.

The Collatz conjecture is one of the most famous unsolved problems in mathematics. The conjecture asks whether repeating two simple arithmetic operations will eventually transform every positive integer into 1. It concerns sequences of integers in which each term is obtained from the previous term as follows: if the previous term is even, the next term is one half of the previous term. If the previous term is odd, the next term is 3 times the previous term plus 1. The conjecture is that these sequences always reach 1, no matter which positive integer is chosen to start the sequence. [image]