Order 1680.
38 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | SL(2,𝔽7) | C5 | 1 | 1 | yes | maximal, characteristic, direct product factor, Hall |
| 2 | C5×#226 | — | 7 | 2 | no | maximal, Hall |
| 3 | C2×C5×ΓL(1,𝔽8) | — | 8 | 1 | no | maximal |
| 4 | C5×SL(2,𝔽3) | — | 7 | 2 | no | — |
| 5 | C5×ΓL(1,𝔽8) | — | 8 | 1 | no | Hall |
| 6 | C5×Q16 | — | 21 | 1 | no | Hall |
| 7 | C2×C5×C7 | — | 8 | 1 | no | — |
| 8 | C5×Dic3 | — | 28 | 1 | no | — |
| 9 | #226 | — | 7 | 2 | no | Hall |
| 10 | C2×ΓL(1,𝔽8) | — | 8 | 1 | no | — |
| 11 | C5×Q8 | — | 7 | 2 | no | — |
| 12 | C5×C8 | — | 21 | 1 | no | — |
| 13 | C5×C7 | — | 8 | 1 | no | Hall |
| 14 | C2×C3×C5 | — | 28 | 1 | no | — |
| 15 | SL(2,𝔽3) | — | 7 | 2 | no | — |
| 16 | ΓL(1,𝔽8) | — | 8 | 1 | no | Hall |
| 17 | C4×C5 | — | 21 | 1 | no | — |
| 18 | Q16 | — | 21 | 1 | no | Sylow |
| 19 | C3×C5 | — | 28 | 1 | no | Hall |
| 20 | C2×C7 | — | 8 | 1 | no | — |
| 21 | Dic3 | — | 28 | 1 | no | — |
| 22 | C2×C5 | GL(3,𝔽2) | 1 | 1 | yes | maximal normal, characteristic |
| 23 | Q8 | — | 7 | 2 | no | — |
| 24 | C8 | — | 21 | 1 | no | — |
| 25 | C7 | — | 8 | 1 | no | Sylow |
| 26 | C2×C3 | — | 28 | 1 | no | — |
| 27 | C5 | SL(2,𝔽7) | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 28 | C4 | — | 21 | 1 | no | — |
| 29 | C3 | — | 28 | 1 | no | Sylow |
| 30 | C2 | C5×GL(3,𝔽2) | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, Fitting, socle, hypercenter | C2×C5 | GL(3,𝔽2) |
| commutator, hypocenter | SL(2,𝔽7) | C5 |
| Frattini, cosocle | C2 | C5×GL(3,𝔽2) |
| LCS | G ▷ SL(2,𝔽7) | |
| UCS | C1 ◁ C2×C5 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. SL(2,𝔽7) | C5 | direct (N × H) |
| 27. C5 | SL(2,𝔽7) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| SL(2,𝔽7) | 5 |
| C5×#226 | 7 |
| C2×C5×ΓL(1,𝔽8) | 8 |