On an inequality about Euler's totient function

In this paper, we show that when Nₖ is a primorial and φ(Nₖ) is Euler's totient function, the inequality φ(Nₖ)<Nₖ/e^γloglogNₖ holds for all positive integer k>44.

Bibliographic Details
Published in:Notes on Number Theory and Discrete Mathematics
Main Author: Cheng-Ting Wang
Format: Article
Language:English
Published: "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences 2025-05-01
Subjects:
Online Access:https://nntdm.net/papers/nntdm-31/NNTDM-31-2-299-304.pdf