English

Improved error bounds for the Fermat primality test on random inputs

Number Theory 2019-01-08 v2

Abstract

We investigate the probability that a random odd composite number passes a random Fermat primality test, improving on earlier estimates in moderate ranges. For example, with random numbers to 22002^{200}, our results improve on prior estimates by close to 3 orders of magnitude.

Keywords

Cite

@article{arxiv.1609.05569,
  title  = {Improved error bounds for the Fermat primality test on random inputs},
  author = {Jared D. Lichtman and Carl Pomerance},
  journal= {arXiv preprint arXiv:1609.05569},
  year   = {2019}
}

Comments

20 pages; minor edits to improve the results slightly and to elaborate the argument

R2 v1 2026-06-22T15:53:39.708Z