How to calculate $\,(a-b)\bmod n\,$ and $ {-}b \bmod n$
127357
Why 9 mod -7 = -5? Quotient and remainder with negative integers.
7043
mod [= remainder] operation (and relation), name and meaning
120571
What does it mean $a \;\text{mod}\; 1$?
61860
Show that if $a$ has order $3\bmod p$ then $a+1$ has order $6\bmod p$.
63803
Calculating the tensor product $\mathbb{Z}/n\mathbb{Z} \otimes_{\mathbb Z} \mathbb{Z}/n\mathbb{Z}$
147453
How do I specify 8^(a - b) in math mode
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
29231
Proof of : $x^{n}\equiv x^{\varphi(m)+[n \bmod \varphi(m)]} \mod m$
22029
Solving modular arithmetic questions
151636
Fast way to calculate n! mod m where m is prime?
39373
How can I calculate $24^{33} \bmod 80$
101159
Prove If a ≡ b (mod n) and c ≡ d (mod n), then a + c ≡ b + d (mod n)
85167
When A and B are of different order given the $\det(AB)$,then calculate $\det(BA)$
102072
Simple $M_n(D)$-module with $D$ a division ring
4972
Mod of numbers with large exponents [modular order reduction]
102444
What is $26^{32}\bmod 12$?
93820
Fermat's little theorem applied for $n$'th root existence $\!\bmod p$