English

Integer Factorization via Continued Fractions and Quadratic Forms

Number Theory 2025-01-22 v2

Abstract

We propose a novel factorization algorithm that leverages the theory underlying the SQUFOF method, including reduced quadratic forms, infrastructural distance, and Gauss composition. We also present an analysis of our method, which has a computational complexity of O(exp(38lnNlnlnN))O \left( \exp \left( \frac{3}{\sqrt{8}} \sqrt{\ln N \ln \ln N} \right) \right), making it more efficient than the classical SQUFOF and CFRAC algorithms. Additionally, our algorithm is polynomial-time, provided knowledge of a (not too large) multiple of the regulator of Q(N)\mathbb{Q}(\sqrt{N}).

Keywords

Cite

@article{arxiv.2409.03486,
  title  = {Integer Factorization via Continued Fractions and Quadratic Forms},
  author = {Nadir Murru and Giulia Salvatori},
  journal= {arXiv preprint arXiv:2409.03486},
  year   = {2025}
}

Comments

21 pages

R2 v1 2026-06-28T18:35:16.602Z