Is $U(\mathbb{Z}_{54})$ a cyclic group?
92430
Show that the group is cyclic.
125469
What are the generators of $\mathbb{Z}_9^*$?
69046
Proof of $\mathbb{Q}$ is not cyclic
5906
All group homomorphism from $ \mathbb{Z} _m $ to $\mathbb{Z}_n $
5223
$\mathbb{Z}_m \times \mathbb Z_n$ is cyclic if and only if $\gcd(m,n)=1$
19884
The units of $\mathbb Z_4[x]$
11000
Fundamental group of $\mathbb{R}^2 \setminus (\mathbb{Z} \times \{0\})$
135710
Cyclic Automorphism group
28913
How to find a generator of a cyclic group?
16507
Is $\mathbb{Z}= \{\dots -3, -2, -1, 0 ,1 ,2 , 3, \dots \}$ countable?
84
For what $n$ is $U_n$ cyclic?
151025
If G is a group of order n=35, then it is cyclic
73402
Showing that $(\mathbb{Z}/p^{a}\mathbb{Z})^*$ is a cyclic group
128899
How to find all generators for a cyclic group of order $n$?
47522
group generators of $(\mathbb Z_{17}-\{0\},\times)$
135241
Show that $\mathbb{Z}/n^2\mathbb{Z}$ is not isomorphic to other group
63478
Is $\mathbb{Q}(\sqrt{2}) \cong \mathbb{Q}(\sqrt{3})$?