Finite Group DatabasebetaFinite Group DatabasebetaOrder 336.
26 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C7×SL(2,𝔽3) | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C7×Q16 | — | 3 | 1 | no | maximal, Hall |
| 3 | C7×Dic3 | — | 4 | 1 | no | maximal |
| 4 | C7×Q8 | — | 3 | 1 | no | — |
| 5 | C7×Q8 | D3 | 1 | 1 | yes | characteristic |
| 6 | C7×C8 | — | 3 | 1 | no | — |
| 7 | #226 | C7 | 1 | 1 | yes | maximal, characteristic, direct product factor, Hall |
| 8 | C2×C3×C7 | — | 4 | 1 | no | — |
| 9 | C4×C7 | — | 3 | 1 | no | — |
| 10 | C4×C7 | — | 6 | 1 | no | — |
| 11 | SL(2,𝔽3) | C2×C7 | 1 | 1 | yes | characteristic |
| 12 | C3×C7 | — | 4 | 1 | no | Hall |
| 13 | Q16 | — | 3 | 1 | no | Sylow |
| 14 | C2×C7 | S4 | 1 | 1 | yes | characteristic |
| 15 | Dic3 | — | 4 | 1 | no | — |
| 16 | Q8 | — | 3 | 1 | no | — |
| 17 | Q8 | D3×C7 | 1 | 1 | yes | characteristic |
| 18 | C8 | — | 3 | 1 | no | — |
| 19 | C7 | #226 | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 20 | C2×C3 | — | 4 | 1 | no | — |
| 21 | C4 | — | 3 | 1 | no | — |
| 22 | C4 | — | 6 | 1 | no | — |
| 23 | C3 | — | 4 | 1 | no | Sylow |
| 24 | C2 | C7×S4 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, socle, hypercenter | C2×C7 | S4 |
| commutator, cosocle, hypocenter | SL(2,𝔽3) | C2×C7 |
| Frattini | C2 | C7×S4 |
| Fitting | C7×Q8 | D3 |
| prime radical | C7×SL(2,𝔽3) | C2 |
| LCS | G ▷ SL(2,𝔽3) | |
| UCS | C1 ◁ C2×C7 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 7. #226 | C7 | direct (N × H) |
| 19. C7 | #226 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C7×SL(2,𝔽3) | 2 |
| C7×Q16 | 3 |
| C7×Dic3 | 4 |
| #226 | 7 |