Discrete Mathematics help: $2017^{2017}$ mod $13$
360
Modular exponentiation by hand ($a^b\bmod c$)
109490
Modular arithmetic problem (mod $13$)
38285
What is $(65!)^2$ congruent to mod $131$?
141371
Prove that $\alpha^n+\beta^n+\gamma^n \equiv 4^n+5^n+(-6)^n \pmod{17}$
21530
How many solutions of $\mod 63$ : $x^2=1 \pmod7 $ and $x^3=1\pmod 9$
36757
I can't determine the maximum natural number which is unable to be represented as $17\times x+23\times y$
25883
Calculating $\Big\lfloor\underbrace{\sqrt{2017+\sqrt{2017+...+\sqrt{2017}}}}_\text{2017 roots}\Big\rfloor$
25744
Multiplication in Permutation Groups Written in Cyclic Notation
12760
The last 2 digits of $7^{7^{7^7}}$
14139
$(12)$ and $(123\dots n)$ are generators of $S_n$
91565
How to efficiently compute $\,25^{37}\pmod{55}$?
7043
mod [= remainder] operation (and relation), name and meaning
29231
Proof of : $x^{n}\equiv x^{\varphi(m)+[n \bmod \varphi(m)]} \mod m$
102368
How to calculate last four digits of $2^{2017}$?
42754
Modular arithmetic: division, fractions, solving linear congruences
75351
How to find inverse Modulo?
102398
Help deriving that $\mathrm{sign} : S_n\to \{\pm 1\}$ is multiplicative