On the number of primitive and quasi-primitive irreducible characters in finite groups

In this short note, it is proved that both the number of primitive characters and the number of quasi-primitive characters in a finite group $G$ is divisible by $\mathrm{\mid }G:G^{\mathrm{\prime }}\mathrm{\mid }$, where $G^{\mathrm{\prime }}$ is the derived subgroup of $G$.