The number of solutions
10753
Natural number solutions to $\frac{xy}{x+y}=n$ (equivalent to $\frac 1x+\frac 1y=\frac 1n$)
23866
Do there exist an infinite number of integer-solutions $(x,y,z)$ of $x^x\cdot y^y=z^z$ where $1\lt x\le y$?
150281
Am I on the right track to figure out this combinatorics problem?
142538
The number of solutions to an $n^{th}$ order differential equation.
77595
Number of solutions of $x_1 + 2x_2 + 3x_3 + \cdots + n x_n = p$
124073
solving for one solution to a system of polynomials
112575
Finding integer solutions of $m^2-n^5 = m - n$
53042
Find solutions to $\varphi\left(n\right)=2^{32}$
38379
Showing that $e^z=z$ has infinitely many solutions
156542
Number of solutions to $a_1 + a_2 + \dots + a_k = n$ where $n \gt 0$ and $0 \lt a_1 \leq a_2 \leq \dots \leq a_k$ are integers.
42360
Find the number of solutions of $a_0+a_1+a_2=17$ if $2\le a_0\le 5$, $3\le a_1\le 6$, $4\le a_2\le 7$.
8446
Number of solutions over positive integers of $x_1 + x_2 + ... + x_n = S$ for $x_i \in [0, 25]$
14773
Finding distinct solutions for the equation
77990
How many solutions $X^{10} - I=0$ has in $M_2(\mathbb{R})$?
39993
Count the number of positive solutions for a linear diophantine equation
89590
The number of solutions of $ax^2+by^2\equiv 1\pmod{p}$ is $ p-\left(\frac{-ab}{p}\right)$
134352
The number of possible factorizations of a positive integer.