Help with primitive root modulo $p^r$
2614
Prove that , any primitive root $r$ of $p^n$ is also a primitive root of $p$
81778
If $m|n$ and $a$ is a primitive root of $n$, show that $a$ is a primitive root of $m$ (understanding a tip)
135574
Help proving the primitive roots of unity are dense in the unit circle.
100116
How to solve equations in Gaussian integers modulo p
82866
Calculating roots with bc_math or GMP
111199
Does there exist a formula for product of the primitive $ n $th roots of unity.
116585
$r$ primitive root of prime $p$, where $p \equiv 1 \mod 4$: prove $-r$ is also a primitive root
4435
What does $\!\bmod(n,x^r-1)$ mean? [in AKS primality test]
49649
How can I find out whether a number is a quadratic residue in a large modulo?
9787
Primitive roots modulo primes congruent to n!
134916
When g and -g are both primitive roots
101057
Show that $1^{p-1} + 2^{p-1} +\ldots + (p-1)^{p-1} \equiv -1 \mod p$
127816
Number theory proof mod p
63493
Why 4 is not a primitive root modulo p for any prime p?
100255
If a prime divides the hypotenuse of a primitive Pythagorean triple, then $p \equiv 1$ (mod 4)
360
Modular exponentiation by hand ($a^b\bmod c$)
75351
How to find inverse Modulo?