paper

Number of non-primes in the set of units modulo

arXiv:1907.09908

Abstract

In this work, we studied various properties of arithmetic function , where $\tildeφ(n)=|\{m\in \mathbb{N} | 1\le m\le n, (m,n)=1, \mbox{$m$ is not a prime}\}|.$

3 pages