What does it meant :$4$ and $2(1+\sqrt{5}))$ without Great commone divisor?
36862
A question about proving that there is no greatest common divisor
120699
Is $\mathcal{O}_{\mathbb{Q}(\sqrt{5})} = \mathbb{Z}[\phi]$?
135086
GCD of two numbers divided by their greatest common divisor is 1
8364
To show that Fermat number $F_{5}$ is divisible by $641$.
117098
Properties of the greatest common divisor: $\gcd(a, b) = \gcd(a, b-a)$ and $\gcd(a, b) = \gcd(a, b \text{ mod } a)$
143409
Simplify $\sqrt {\sqrt[3]{5}-\sqrt[3]{4}}$.
107725
Prove that if $n$ is not divisible by $5$, then $n^4 \equiv 1 \pmod{5}$
128634
Doubt related to a theorem in congruences of Chapter 5 of Apostol Introduction to analytic number theory
78351
Why is $(2, 1+\sqrt{-5})$ not principal?
109305
Non-existence of natural numbers such that $\sqrt{n} +\sqrt{n+1} <\sqrt{x} +\sqrt{y} <\sqrt{4n+2}$
105442
Show that any prime divisor of $x^4+x^3+x^2+x+1$, with $x\in\mathbb{N}$, is $5$ or $1$ mod $5$
43300
The degree of $\sqrt{2} + \sqrt[3]{5}$ over $\mathbb Q$
87846
If $\gcd (x,4) = 2$ and $\gcd(y,4) = 2$ then $\gcd(x+y,4) = 4$
26336
Prove that $n(n^2 - 1)(n + 2)$ is divisible by $4$ for any integer $n$
50785
Galois group of $x^4-5$
116175
Show that $\gcd(3k+2,5k+3)=1$
25034
Fermat numbers are coprime