Work

Improved verification limit for the convergence of the Collatz conjecture

Year: 2025
Type: article
Abstract: This article presents our project, which aims to verify the Collatz conjecture computationally. As a main point of the article, we introduce a new result that pushes the limit for which the conjecture is verified up to $$2^{71}$$ 2 71 . We present our baseline algorithm and then several sub-algorithms that enhance acceleration. The total acceleration from the first algorithm we used on the CPU to our best algorithm on the GPU is $$1\,335\times$$ 1 335 × . We further distribute individual tasks to thousands of parallel workers running on several European supercomputers. Besides the convergence verification, our program also checks for path records during the convergence test. We found four new path records.
Author: David Barina
Language: English
Open Access status: hybrid
Estimated APC paid: $3,290
OpenAlex ID: W4410036968
FWCI: 4.368
Cites: 5
Cited by: 6
Related to: 10