Linear congruence $53x \equiv 62 \pmod{105}$
30045
Solving linear congruences by hand: modular fractions and inverses
141704
Fractional exponentiation in modular arithmetic
124241
Finding all integers $k \geq 2$ such that $k^2 \equiv 5k \pmod{15}$. What is going on here?
52530
There exists a prime congruent to $m$ mod $p$
151636
Fast way to calculate n! mod m where m is prime?
96535
Show that if $\gcd(a,3)=1$ then $a^7 \equiv a\pmod{63}$. Why is this assumption necessary?
9787
Primitive roots modulo primes congruent to n!
978
Solving $ax \equiv c \pmod b$ efficiently when $a,b$ are not coprime
80535
Linear congruence fill in the missing step?
41295
Divisibility, LCM and GCD for fractions (rationals)
38876
$r! \equiv (−1)^k \pmod p$
73238
Show that $a^{q-1} \equiv 1 \pmod{pq}$
36713
Solving multiple congruences by CRT = Chinese Remainder Theorem
14693
$d = \gcd(c,m),\ ac≡bc\pmod{\! m}\Rightarrow a≡b\pmod {\!m/d}\ $ [Congruence Cancellation & Division Rule]
109490
Modular arithmetic problem (mod $13$)
150446
Quadratic Modular Arithmetic
66161
How to solve the equation $n^2 \equiv 0 \pmod{584}$?