How to solve large modular equations?
20908
How to compute $k$'th roots $\!\bmod n$?
61134
Solving cubic equations with another method.
145617
Is there any simple trick to solve the congruence $a^{24}\equiv6a+2\pmod{13}$?
39969
Algorithms for computing multiplicative order modulo $n$
360
Modular exponentiation by hand ($a^b\bmod c$)
40892
How to solve a linear congruence $8n+9\equiv 0\pmod{\!1163}$
53042
Find solutions to $\varphi\left(n\right)=2^{32}$
94965
Solve $x\equiv 1\pmod2$, $x\equiv 2\pmod3$, $x\equiv 3\pmod4$, $x\equiv 4\pmod5$, $x\equiv 5\pmod6$ and $x\equiv 0\pmod7$
9039
What is the best way to solve modular arithmetic equations such as $9x \equiv 33 \pmod{43}$?
30045
Solving linear congruences by hand: modular fractions and inverses
8676
Is there any "superlogarithm" or something to solve $x^x$?
15314
Number of solutions to $x^n \equiv 1 \mod p$
146308
Solving 2-degree equations in 3 variables.
103304
Finding the number of solutions to a diophantine equation
36438
How to solve infinite repeating exponents
21530
How many solutions of $\mod 63$ : $x^2=1 \pmod7 $ and $x^3=1\pmod 9$
125057
How do I solve a problem with term $a^{n} + b^{n}$?