Order 1344.
187 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Fitting, socle, hypercenter | C23 | GL(3,𝔽2) |
| commutator, hypocenter | SL(2,𝔽7) | C22 |
| Frattini, cosocle | C2 | C22×GL(3,𝔽2) |
| LCS | G ▷ SL(2,𝔽7) | |
| UCS | C1 ◁ C23 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×SL(2,𝔽7) | C2 | direct (N × H) |
| 2. SL(2,𝔽7) | C22 | direct (N × H) |
| 56. C22 | SL(2,𝔽7) | direct (N × H) |
| 61. C2 | C2×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 |
|---|---|
| C2×SL(2,𝔽7) | 2 |
| C22×#226 | 7 |
| C23×ΓL(1,𝔽8) | 8 |