a question of primitive root
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 $p$?
Last edited by tanmoy on Wed Jun 16, 2021 3:45 pm, edited 1 time in total.
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Re: a question of primitive root
yeah.
consider p=29 , r=31.
that'll do the work
consider p=29 , r=31.
that'll do the work
Re: a question of primitive root
how to prove that, thanks!