Find all solutions of congruence $3x^2−2x+9≡0\pmod {35}$
29989
Solve $x^2+5x+6 \equiv 0 \pmod{\!11\cdot 17}$
85449
Show a,b,c congruences when $a^2+b^2=c^2$
110809
What can primes, except 2, 3, and 5, be congruent to $\pmod {30}$?
21874
Solve $x^3+x \equiv 1 \pmod p$
144851
For a prime $p \equiv 1$ or $3$ (mod $8$), show that the equation $x^{2} + 2y^{2} = p$ has a solution.
66161
How to solve the equation $n^2 \equiv 0 \pmod{584}$?
40892
How to solve a linear congruence $8n+9\equiv 0\pmod{\!1163}$
155743
Why does the equation $x^2\equiv2 \pmod 5$ have no solutions?
36713
Solving multiple congruences by CRT = Chinese Remainder Theorem
60305
Proving the congruence $p^{q-1}+q^{p-1} \equiv 1 \pmod{pq}$
108035
solving diophantine equations using congruences
157771
Nested exponent modulus, $2^{2^{517}} \pmod {23}$
127945
Number of solutions to the congruence $x^q \equiv 1 \mod p$.
112390
Solutions of $x^2 \equiv 1 \pmod N$
51445
Number Theory: Find all solutions of $\phi(n)=16$ and $\phi(n)=24$
152591
For which prime numbers $p$ does the congruence $x^2 + x + 1 \equiv 0 \pmod{p}$ have solutions?
41673
Solve congruence system $\ x\equiv m_i-1 \pmod{m_i}\,$ for $\,i = 1,\ldots, k$