How to solve this quadratic congruence? $27w^2+20w+35 \equiv 0 \pmod{23}$
8784
modulo version of the quadratic formula and Euler's criterion
34192
Solve $x^{5} \equiv 2$ mod $221\ $ [Taking modular $k$'th roots if unique]
134450
Chinese Remainder Theorem $\ x\equiv m_k-2\pmod{m_k}$
33735
The square of an integer is congruent to 0 or 1 mod 4
68960
How to solve $ 13x \equiv 1 ~ (\text{mod} ~ 17) $?
42754
Modular arithmetic: division, fractions, solving linear congruences
15897
Solve a congruence $1978^{20}\equiv x\pmod{125}$
29989
Solve $x^2+5x+6 \equiv 0 \pmod{\!11\cdot 17}$
21874
Solve $x^3+x \equiv 1 \pmod p$
140143
Find $n$ satisfying the equation $[\log_21]+[\log_22]+[\log_23]+\dots[\log_2n]=1538 $
157771
Nested exponent modulus, $2^{2^{517}} \pmod {23}$
35504
The Diophantine equation $x^2 + 2 = y^3$
154944
Quadratic congruence in $ \mathbb{Z}/187\mathbb{Z},\ 187 =11\cdot 17 $
80875
Congruence equation ...
46400
how do i prove that $17^n-12^n-24^n+19^n \equiv 0 \pmod{35}$
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Solving a congruence without Fermat's little theorem
146053
Proving identities (mod $pq$) using Fermat's little theorem?