(x % mod) ** 2 = x**2 % mod
46780
Proving $((a\bmod n) (b\bmod n))\bmod n = ab\bmod n $
33735
The square of an integer is congruent to 0 or 1 mod 4
75489
Solve $x^2$ $mod$ $23 = 7^2$
75351
How to find inverse Modulo?
4129
Solvability of $a \equiv x^2 \mod b$
101159
Prove If a ≡ b (mod n) and c ≡ d (mod n), then a + c ≡ b + d (mod n)
58803
${n \choose k} \bmod m$ using Chinese remainder theorem?
122741
$x^2$ is congruent to $-1 \bmod p$
29231
Proof of : $x^{n}\equiv x^{\varphi(m)+[n \bmod \varphi(m)]} \mod m$
21108
Perfect squares and modularly congruency in mod 5
39817
JavaScript % (modulo) gives a negative result for negative numbers
29204
$a\equiv\bar a\!\pmod{\!kn}\Rightarrow a\equiv\bar a\!\pmod{\! n};\ $ $(a\bmod kn)\bmod n=a\bmod n.\ $ Congruences persist mod factors of the modulus
54029
What is x after "x = x++"?
147888
Show that $M=\bigcap_{\mathfrak{p}\in\operatorname{Spec}(R)}M_\mathfrak{p}=\bigcap_{\mathfrak{m}\in\text{Max}(R)}M_\mathfrak{m}$ for certain $M$.
9118
Polynomial division: an obvious trick? [reducing mod $\textit{simpler}$ multiples]
43683
Finding Inverse of 2 (mod m)
35484
A question in math mode