Finite Group DatabasebetaFinite Group DatabasebetaOrder 8.
8 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C22 | C2 | 1 | 2 | yes | maximal, complemented |
| 2 | C4 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | C2 | — | 2 | 2 | no | — |
| 4 | C2 | C22 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C2 | C22 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ G | |
| LECS | G ▷ C2 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C22 | C2 | semidirect |
| 2. C4 | C2 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22 | 2 |
| C4 | 2 |