Square in a finite field
122612
An integer is a $n$'th power if that holds true for all moduli.
46795
Explicit construction of a finite field with $p^n$ elements
23526
Complexity of arithmetic in a finite field?
46565
Show that $\mathbb{Q}(\sqrt{2})$ is a field.
18932
Squares in arithmetic progression
38911
Squares in $\mathbb{Z}_p$ that are not squares in $\mathbb{Z}$
127002
Prove that for a nonzero element $a$ of a field $F$ with $q$ elements $a^{-1} = a^{q-2}$
47091
How to construct finite fields of any prime power order?
10760
Why is the product of all units of a finite field equal to $-1$?
87267
Conjecture similar to Fermat's Theorem.
130851
Squaring the plane, with consecutive integer squares. And a related arrangement
73652
Exhibiting an isomorphism between two finite fields
147746
Characterisation of the squares of the symmetric group
26055
Multiplication by $0$ in a field
6984
Inverting $a+b\sqrt{2}$ in the field $\Bbb Q(\sqrt{2})$
132133
Number of elements of a finite field
151732
Number of solutions of polynomials in a field