Solve the congruence $30x \equiv 186 \pmod{216}$
978
Solving $ax \equiv c \pmod b$ efficiently when $a,b$ are not coprime
14783
A Number Theory problem (GCD)
51161
Finding the inverse of 84 mod 5
45882
Solving a congruence without Fermat's little theorem
75166
Find with proof all positive integers $n$ such that $2^n + 1 \equiv 0 \pmod{n}$
92700
How can I solve $x^2 \equiv 19 \pmod {59}$.
158684
How to solve and see resolution of $13^{53} \pmod 7$ using Fermat little Theorem?
18093
Find $x$ such that $\sum_{k=1}^{2014} k^k \equiv x \pmod {10}$
102204
Factoring product of two primes from solutions of congruence
134450
Chinese Remainder Theorem $\ x\equiv m_k-2\pmod{m_k}$
66161
How to solve the equation $n^2 \equiv 0 \pmod{584}$?
30045
Solving linear congruences by hand: modular fractions and inverses
118955
Specific steps in applying the Chinese Remainder Theorem to solve modular problem splitting modulus
41673
Solve congruence system $\ x\equiv m_i-1 \pmod{m_i}\,$ for $\,i = 1,\ldots, k$
40892
How to solve a linear congruence $8n+9\equiv 0\pmod{\!1163}$
133925
Find All Solutions to System of Congruence
110809
What can primes, except 2, 3, and 5, be congruent to $\pmod {30}$?