English

Improved estimate for the prime counting function $\pi(x)$

Number Theory 2021-08-24 v2

Abstract

Using some simple combinatorial arguments, we establish some new estimates for the prime counting function and its allied functions. In particular we show that \begin{align}\pi(x)=\Theta(x)+O\bigg(\frac{1}{\log x}\bigg), \nonumber \end{align}where \begin{align}\Theta(x)=\frac{\theta(x)}{\log x}+\frac{x}{2\log x}-\frac{1}{4}-\frac{\log 2}{\log x}\sum \limits_{\substack{n\leq x\\\Omega(n)=k\\k\geq 2\\2\not| n}} \frac{\log (\frac{x}{n})}{\log 2}.\nonumber \end{align}This is an improvement to the estimate \begin{align}\pi(x)=\frac{\theta(x)}{\log x}+O\bigg(\frac{x}{\log^2 x}\bigg)\nonumber \end{align}found in the literature.

Keywords

Cite

@article{arxiv.1805.10303,
  title  = {Improved estimate for the prime counting function $\pi(x)$},
  author = {Theophilus Agama},
  journal= {arXiv preprint arXiv:1805.10303},
  year   = {2021}
}

Comments

Improvement of the previous version suggested by the referee

R2 v1 2026-06-23T02:08:46.717Z