Torsion subgroup of $\mathbb{Z}\times\mathbb{Z}_n$
128652
Subgroups of $\mathbb Z \times(\mathbb Z/n\mathbb Z)$
135701
An example of a group such that $G \cong G \times G$
76962
Sylow $p$-subgroups of $GL_n(\mathbb{F}_p)$
147968
Calculate the Factor Group $(\mathbb{Z}_4 \times \mathbb{Z}_6)/\langle(0,2)\rangle$
109596
Isomorphism from $\mathrm{Aut}(\mathbb{Z}/2\mathbb{Z}\times \mathbb{Z}/2\mathbb{Z})$ to $S_3$
141843
n-dimensional vector space isomorphic to the n-th product of a field as abelian groups
41231
Subgroups of (Z,+) of order n
107687
How to prove that $U_{2^n}$ is isomorphic as group to $\mathbb Z_2 \times \mathbb Z_{2^{n-2}}$ for $n \ge 3$?
7575
Show the commutator subgroup of $S_{n}$ is $A_{n}$ for $n \geq 5$
133019
Nilpotent elements in $\mathbb Z_n$
127978
Another point of view that $\mathbb{Z}/m\mathbb{Z} \times\mathbb{Z}/n\mathbb{Z}$ is cyclic.
78263
Prove $GL_n(\Bbb{R})/SL_n(\Bbb{R}) \cong \Bbb{R}^\times$
33387
Proof that $n\Bbb Z \leq \Bbb Z$ and are the only subgroups of $\Bbb Z$
151705
$SL_n(\mathbb R)$ is a subgroup of kernel of $f\in$ Hom$(GL_n(\mathbb R), A)$, $A$ is an abelian group.
142413
Normal Subgroups of $SU(n)$
131516
Subgroup generated by n-th powers of elements
144582
Index of a subgroup in $SL_2(\mathbb{Z})$