What is the correct answer to this infamously ambiguous arithemetic problem 6÷2(1+2)?
19449
What is $48\div2(9+3)$?
11506
Alternative proof that $(a^2+b^2)/(ab+1)$ is a square when it's an integer
126816
Question of remainder on dividing by 7
132115
Verify my proof of the irrationality of $\sqrt{6}$.
94700
Integer solutions for $x^3+2=y^2$?
74157
Need help interpreting a passage from an old text on Diophantine equations
87596
Is $\sum_{p}\frac{1}{p^{2}}$ irrational?
73079
Eliminating non-integer solutions to $ab / (2\sqrt{ab} + a + b)$
70460
How can I solve the following sequence
146169
Integer solutions to $\frac{1}{a} + \frac{1}{b} = \frac{1}{12}$.
134927
How can a square root be defined since it has two answers?
137015
Solutions for $a^2+b^2+c^2=d^2$
127566
$2AB$ is a perfect square and $A+B$ is not a perfect square
100913
It is impossible for $(x-1)^2+x^2+(x+1)^2$ to be a perfect square
55777
A tricky sum to infinity
2027
How can I solve the folowing Diophantine equation with two unknowns?
1002
Where is the flaw in this "proof" that 1=2? (Derivative of repeated addition)