Finite Group DatabasebetaFinite Group DatabasebetaOrder 392.
24 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C23×C7 | C7 | 1 | 1 | yes | maximal, characteristic, complemented |
| 2 | AGL(1,𝔽8) | C7 | 1 | 7 | yes | maximal, direct product factor |
| 3 | C72 | — | 8 | 1 | no | maximal, Sylow |
| 4 | C22×C7 | — | 7 | 1 | no | — |
| 5 | C2×C7 | — | 7 | 1 | no | — |
| 6 | C23 | C72 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 7 | C7 | — | 8 | 7 | no | — |
| 8 | C7 | AGL(1,𝔽8) | 1 | 1 | yes | characteristic, direct product factor |
| 9 | C22 | — | 7 | 1 | no | — |
| 10 | C2 | — | 7 | 1 | no | — |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C7 | AGL(1,𝔽8) |
| commutator, cosocle, hypocenter | C23 | C72 |
| Frattini | C1 | G |
| Fitting, socle | C23×C7 | C7 |
| LCS | G ▷ C23 | |
| UCS | C1 ◁ C7 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C23×C7 | C7 | semidirect |
| 2. AGL(1,𝔽8) | C7 | direct (N × H) |
| 6. C23 | C72 | semidirect |
| 8. C7 | AGL(1,𝔽8) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C23×C7 | 7 |
| AGL(1,𝔽8) | 7 |
| C72 | 8 |