Several Quantitative Characterizations of Some Specific Groups

A. Mohammadzadeh, A. R. Moghaddamfar

Let $G$ be a finite group and let $\pi (G)=\{p_1,p_2,\dots ,p_k\}$ be the set of prime divisors of $|G|$ for which $p_1<p_2<\cdots <p_k$. The Gruenberg-Kegel graph of $G$, denoted $…