English

A Note on the least squarefree number in an arithmetic progression

Number Theory 2017-03-29 v1

Abstract

We prove an asymptotic formula for squarefree in arithmetic progressions with squarefree moduli, improving previous results by Prachar. The main tool is an estimate for counting solutions of a congruence inside a box that goes beyond what can be obtained by using the Weil bound.

Keywords

Cite

@article{arxiv.1605.03347,
  title  = {A Note on the least squarefree number in an arithmetic progression},
  author = {Ramon M. Nunes},
  journal= {arXiv preprint arXiv:1605.03347},
  year   = {2017}
}

Comments

6 pages, no figures

R2 v1 2026-06-22T13:58:14.354Z