An Interval on Which $ (n) > n$ Contains No Prime Power

Let $I \\subseteq [x, 2x]$ be an interval on which the inequality $\\omega(n) > \\log\\log n$ holds at every point, where $\\omega$ counts distinct prime factors. We show that $I$ contains no prime power beyond $15$. The reason is a collision between two very slowly moving quantities. A prime power has $\\omega = 1$ exactly, while $\\log\\log n$ passes $1$ at $e^e \\approx 15.154$ and never returns. Past that point no prime power can satisfy the inequality, so an interval on which it holds everywhere must avoid the primes and their powers entirely, and its length is bounded by the largest prime-power gap into which it can be placed. This converts a question about additive functions into a question about prime gaps.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-09-21
DOI
https://doi.org/10.5281/zenodo.22883472
Primary Topic
Analytic Number Theory Research
Type
preprint
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An Interval on Which $ (n) > n$ Contains No Prime Power

Christopher Mills
Zenodo (CERN European Organization for Nuclear Research)
Analytic Number Theory Research
preprint

An Interval on Which $ (n) > n$ Contains No Prime Power

Christopher Mills
preprint en

Abstract

Let $I \subseteq [x, 2x]$ be an interval on which the inequality $\omega(n) > \log\log n$ holds at every point, where $\omega$ counts distinct prime factors. We show that $I$ contains no prime power beyond $15$. The reason is a collision between two very slowly moving quantities. A prime power has $\omega = 1$ exactly, while $\log\log n$ passes $1$ at $e^e \approx 15.154$ and never returns. Past that point no prime power can satisfy the inequality, so an interval on which it holds everywhere must avoid the primes and their powers entirely, and its length is bounded by the largest prime-power gap into which it can be placed. This converts a question about additive functions into a question about prime gaps.

Zenodo (CERN European Organization for Nuclear Research)
Reduced inequalities
Analytic Number Theory Research
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