Find all solutions to $1!\times 3! \times \cdots \times (2n -1)!=m!$
26087
Find all natural numbers $n > 1$ and $m > 1$ such that $1!3!5!\cdots(2n - 1)! = m!$
34374
Simplifying factorials: $\frac{(n-1)!}{(n-2)!}$
111467
find all natural solution that satisfy $x^2+y^2 = 3z^2$
80216
Prove if $n \in \mathbb N$, then $\frac{1}{2!}+\cdots+\frac{n}{(n+1)!}=1-\frac{1}{(n+1)!}$
113407
Finding all solutions for a system of equations with constraint on the sum of absolute values
60902
Find general solution for the equation $1 + 2 + \cdots + (n − 1) = (n + 1) + (n + 2) + \cdots + (n + r) $
53042
Find solutions to $\varphi\left(n\right)=2^{32}$
2675
Proof $1+2+3+4+\cdots+n = \frac{n\times(n+1)}2$
152342
$x_1+x_2+\cdots+x_n\leq M$: Cardinality of Solution Set is $C(M+n, n)$
91003
Prove that equation has exactly 2 solutions
90261
Find all solutions of the equation $n^m=x^2+py^2$ which satisfy the following properties
130565
Find all solutions to $x^3+(x+1)^3+ \dots + (x+15)^3=y^3$
116356
Combinatorial proof of $2 \cdot 3^0 + 2 \cdot 3^1 + 2 \cdot 3^2 + \cdots 2 \cdot 3^{n-1} = 3^n-1$
117001
Find all solutions for $z^3 = \overline{z}$
77799
Determine the set of units $(\Bbb Z/n\Bbb Z)^\times$ for different values of $n$
124073
solving for one solution to a system of polynomials
119109
Integer solutions to $ n^2 + 1 = 2 \times 5^m$