On the largest prime factor of integers in short intervals II

18 June 2025, Version 1
This content is an early or alternative research output and has not been peer-reviewed by Cambridge University Press at the time of posting.

Abstract

The author sharpens a result of Baker and Harman (2009), showing that for sufficiently large $x$, the interval $[x, x+x^{\frac{1}{2}}]$ contains an integer with a prime factor larger than $x^{0.7437}$. Optimized bounds for multiple exponential sums and accurate numerical calculations are used for this improvement.

Keywords

prime
sieve methods
exponential sums

Supplementary materials

Title
Description
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Mathematica code for numerical calculations
Description
This is the Mathematica code for the numerical calculations in the preprint.
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Mathematica package SieveFunctions
Description
This is Galway's Mathematica package that gives values of functions FF(s) and ff(s) in our code.
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