Find numbers $x$, $y$ such than $(x,y) = 18$ and $[x,y]= 3780$
59856
Find $x,y$ given $\gcd(x,y)$ and ${\rm lcm}(x,y)$
30352
How to calculate Maximum or Minimum of two numbers without using if?
149254
Solving $y^3=x^3+8x^2-6x+8$
26692
Equation in integers $7^x-3^y=4$
123140
Using 9-test or 11-test to find digit x in 52817*3212146 = 169655x15282
17741
Quick way to solve the system $\displaystyle \left( \frac{3}{2} \right)^{x-y} - \left( \frac{2}{3} \right)^{x-y} = \frac{65}{36}$, $xy-x+y=118$.
49209
Prove $(x+y)(y+z)(x+z)≤\frac8{27}(x+y+z)^3$
5595
$x^y = y^x$ for integers $x$ and $y$
19449
What is $48\div2(9+3)$?
92772
How many different sets of $6$ different numbers can we construct from $11, 13, 18, 19, 19, 20, 23, 25$?
156242
As many even numbers as natural numbers.
100565
Property of sup of a set of numbers
60385
How to solve this sequence $165,195,255,285,345,x$
97005
A number smaller than negative infinity in python?
52055
how to prove $437\,$ divides $18!+1$? (NBHM 2012)
119146
How to solve $n < 2^{n/8}$ for $n$?
59175
Given that $x+\frac{1}{x}=\sqrt{3}$, find $x^{18}+x^{24}$