English

Improved bounds on Brun's constant

Number Theory 2018-03-07 v1

Abstract

Brun's constant is B=pP2p1+(p+2)1B=\sum_{p \in P_{2}} p^{-1} + (p+2)^{-1}, where the summation is over all twin primes. We improve the unconditional bounds on Brun's constant to 1.840503<B<2.2885131.840503 < B < 2.288513, which is about a 13\% improvement on the previous best published result.

Cite

@article{arxiv.1803.01925,
  title  = {Improved bounds on Brun's constant},
  author = {Dave Platt and Tim Trudgian},
  journal= {arXiv preprint arXiv:1803.01925},
  year   = {2018}
}

Comments

11 pages; submitted to the proceedings of the Jon Borwein Commemorative Conference

R2 v1 2026-06-23T00:43:04.033Z