Order 672.
56 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C1 | G |
| commutator, cosocle, hypocenter | C42×C7 | C2×C3 |
| Frattini | C22 | C2×C22⋊ΓL(1,𝔽8) |
| Fitting | C7×#127 | C3 |
| socle | C22×C7 | C2×A4 |
| LCS | G ▷ C42×C7 | |
| UCS | C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C7⋊(C42⋊C3) | C2 | semidirect |
| 2. C7×#127 | C3 | semidirect |
| 6. C42×C7 | C2×C3 | semidirect |
| 16. #127 | ΓL(1,𝔽8) | semidirect |
| 26. C42 | C2×ΓL(1,𝔽8) | semidirect |
| 36. C7 | #127⋊C3 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C7⋊(C42⋊C3) | 2 |
| C7×#127 | 3 |
| C2×C22⋊ΓL(1,𝔽8) | 4 |
| #127⋊C3 | 7 |