Hungerford section 2.1: Find all the solutions of $6x \equiv 9 \pmod{15} $
978
Solving $ax \equiv c \pmod b$ efficiently when $a,b$ are not coprime
41689
Find all solutions: $x^2 + 2y^2 = z^2$
115244
Integer solutions of $m^2+(m+1)^2=n^4+(n+1)^4$
133925
Find All Solutions to System of Congruence
75166
Find with proof all positive integers $n$ such that $2^n + 1 \equiv 0 \pmod{n}$
946
How to find solutions of linear Diophantine ax + by = c?
63194
Find all integer solutions to $x^2-2y^2=1$
82571
Number of solutions of $x^2=1$ in $\mathbb{Z}/n\mathbb{Z}$
28594
Number of integer solutions of the following equation
112575
Finding integer solutions of $m^2-n^5 = m - n$
96237
$1^2 + 2^2 + 3^2 + \cdots + (n-1)^2 \equiv 0$ mod n iff $n \equiv \pm 1$ mod 6
15436
Find p and q s.t. $({p-1})^{q-1}+({q-1})^{p-1} \equiv 101 \pmod {pq}$
94407
Number of solutions for $x[1] + x[2] + \ldots + x[n] =k$
155743
Why does the equation $x^2\equiv2 \pmod 5$ have no solutions?
131395
Solving linear congruence $2x + 11 \equiv 7 \pmod 3$
144025
Number of Solutions in this Number Puzzle
18093
Find $x$ such that $\sum_{k=1}^{2014} k^k \equiv x \pmod {10}$