Find the natural numbers $n$ in which $n^2$ divides $584$?
66161
How to solve the equation $n^2 \equiv 0 \pmod{584}$?
41641
$(n-7)(n+7)=$ some perfect square
91353
Given $n \in \Bbb Z$, determine $\gcd(3n^2 + 7n + 4, n + 2)$.
145519
Prove that for any natural number $n>1$, we have $(2n)!<(n(n+1))^n$
16537
Find all the numbers $n$ such that $\frac{4n-5}{60-12n}$ can't be reduced.
136933
Which $n$ can be expressed as $x^2 − y^2$?
8504
Factoring $x^n + y^n$ over the integers
45788
$n$-th digit in the sequence of natural numbers
95141
$n^5-n$ is divisible by $10$?
94983
Can an odd number $n$ divide $2^n-1$?
148906
Finding integers $m,n$ such that $(m-n)^2=4mn/(m+n-1)$
30620
For which natural n is $3^n+5^n$ divisible by $3^{n-1}+5^{n-1}$?
114404
For which positive integer values of $n$ does $a|mn-b?$
140143
Find $n$ satisfying the equation $[\log_21]+[\log_22]+[\log_23]+\dots[\log_2n]=1538 $
67968
When is $2^n -7$ a perfect square?
45240
Starting digits of $2^n$.
20504
$\forall m,n \in \Bbb N$ : $\ 56786730\mid mn(m^{60}-n^{60})$