Classifying non-abelian group(s) of order $18$
33152
Classifying groups of order 18
63798
How can you show there are only 2 nonabelian groups of order 8?
18182
An abelian group $G$ with ${\rm Aut}(G)$ non-abelian
49162
Classify all groups with order $pq$, $p$ is not equal to $q$
141458
How many subgroups or order 8 an abelian Group of order 72 can have
151210
How can we find and categorize the subgroups of $\mathbb{R}$?
41231
Subgroups of (Z,+) of order n
137201
Classifying $\mathbb{Z} \times \mathbb{Z} \times \mathbb{Z} / \langle(3,3,3)\rangle$
99309
Groups of order $n^2$ that have no subgroup of order $n$
75590
How many normal subgroups does a non-abelian group $G$ of order $ 21$
76732
Number of non-isomorphic groups of order 21
87696
Use every non-abelian group of order 6 has a non-normal subgroup of order 2 to classify groups of order 6.
157841
Existence of a non-abelian group of order $p^n$.
62977
Show on $\mathbb{N}$ there are $2^{\aleph_0}$ nonisomorphic linear orders.
152630
showing that a group of order 45 is abelian
68955
Characterising subgroups of Prüfer $p$-groups.
66806
A nonsplit short exact sequence of abelian groups with $B \cong A \oplus C$