a question of primitive root
Posted: Wed Jun 16, 2021 9:56 am
Let $r$ be a prime and $r \geq 19$. Does there exist a prime $p$ in $\left(\dfrac{2r}{3}, r\right)$ such that $r$ is a primitive root mod $p$?
yeah.
consider p=29 , r=31.
that'll do the work