Primitive roots of unity
42165
Complex numbers and Roots of unity
98803
Square roots of integers and cyclotomic fields
107694
How to test if a number is a primitive root?
69935
Field extensions of finite degree and primitive elements
41002
sum of integers using order of integers and primitive roots
39096
Primitive elements of GF(8)
111199
Does there exist a formula for product of the primitive $ n $th roots of unity.
46821
Finding roots in $\mathbb{Z}_p$
90933
Finding the roots of complex numbers
31076
Roots of unity filter, identity involving $\sum_{k \ge 0} \binom{n}{3k}$
115241
If $p$ and $q = 2p + 1$ are both odd primes, show that $-4$ and $2(-1)^{(1/2)(p-1)}$ are both primitive roots modulo $q$.
68275
Primitive Root Theorem Proof
51314
How to prove that a complex number is not a root of unity?
134916
When g and -g are both primitive roots
89621
Square roots of quaternions
153862
A question about a primitive root mod $p=2^{2^k}+1$, where $p$ is prime.
90591
On the group of all complex roots of unity whose orders are powers of $p$, prime number