$2^4 = 4^2$ are there any other solutions to $x^y = y^x$?
18761
Given that $x^y=y^x$, what could $x$ and $y$ be?
43453
Is ${\sqrt2^{\sqrt2^{\sqrt2^{\sqrt2^\sqrt2}}}}^{...}=4$ correct?
127901
If $x^2+y^2 \equiv 0\pmod{p}$, then $p \equiv 1 \pmod{4}$
59196
Find all real solutions for $x$ in $ 2(2^x- 1) x^2 + (2^{x^2}-2)x = 2^{x+1} -2 . $
13572
$x^y+y^x>1$ for all $(x, y)\in \mathbb{R_+^2}$
87304
Solving for $x$ : $a^x+b^x=c$
155757
Number theory: $x^y + 1 = y^x$
65371
Does $2^X \cong 2^Y$ imply $X \cong Y$ without assuming the axiom of choice?
63194
Find all integer solutions to $x^2-2y^2=1$
87029
Solve $y^2=x^3-4$ in $x,y\in \mathbb{Z}$
13120
Find all integer solutions to $x^2+y^2+z^2=2xyz$
133164
Rational solutions for $x^2+y^2=3$
102777
Is $G^{(X, Y)} = (G^X)^Y?$ ($A^B$ just means that $B$ is mapped to $A$)
137015
Solutions for $a^2+b^2+c^2=d^2$
20491
How to solve this equation $x^{2}=2^{x}$?
94700
Integer solutions for $x^3+2=y^2$?
53042
Find solutions to $\varphi\left(n\right)=2^{32}$