How to find GCD between these two equations?
23590
Show that $\gcd\left(\frac{a^n-b^n}{a-b},a-b\right)=\gcd(n d^{n-1},a-b)$
8160
What is $\gcd(0,a)$, where $a$ is a positive integer?
135086
GCD of two numbers divided by their greatest common divisor is 1
93930
GCD of the already GCD
37808
Show that $\gcd(a^2, b^2) = \gcd(a,b)^2$
81116
$gh = hg, \ \gcd(|g|, |h|) = 1\Rightarrow|gh| = |g||h|\ \ (|a|$ = order of element $a)$
55441
Check: For the integers $a,b,c$ show that $\gcd(a,bc)=\gcd(a,\gcd(a,b)\cdot c)$
131941
Solve quadratic congruences.
59856
Find $x,y$ given $\gcd(x,y)$ and ${\rm lcm}(x,y)$
48622
Given an integer $a$, suppose $d=\gcd(3a+5,\,5a+7)>2$. Determine $d$.
34330
How to prove $\gcd(a^2,b^2) = (\gcd(a,b))^2$?
27250
Greatest common divisor of two relatively primes
56803
Finding solutions to congruence equations
112486
Bounds on a sum of gcd's
111555
Find $a,b \in \mathbb{N}$ with $\mathrm{lcm}(a,b)=12\gcd(a,b)\,$ and $\,a\bmod b = 5$
65503
Identity involving LCM and GCD: $\frac{[a,b,c]^2}{[a,b][b,c][c,a]}=\frac{(a,b,c)^2}{(a,b)(b,c)(c,a)}$
69279
If $\gcd(a,b)=1$ then, $\gcd(a^2,b^2)=1$