Order 672.
216 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C42 | AGL(1,𝔽7) |
| commutator, hypocenter | C7 | C2×C3×C42 |
| Frattini | C22 | C22×AGL(1,𝔽7) |
| Fitting | C42×C7 | C2×C3 |
| socle, cosocle | C22×C7 | C23×C3 |
| prime radical | C22×AGL(1,𝔽7) | C22 |
| LCS | G ▷ C7 | |
| UCS | C1 ◁ C42 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C42×ΓL(1,𝔽8) | C2 | semidirect |
| 3. C4×ΓL(1,𝔽8)⋊C4 | C2 | semidirect |
| 4. C42×D7 | C3 | semidirect |
| 8. C4×AGL(1,𝔽7) | C4 | direct (N × H) |
| 10. C42×C7 | C2×C3 | semidirect |
| 11. C4×Dic7 | C2×C3 | semidirect |
| 15. C4×ΓL(1,𝔽8) | C2×C4 | semidirect |
| 16. ΓL(1,𝔽8)⋊C4 | C2×C4 | semidirect |
| 20. C4×D7 | C3×C4 | semidirect |
| 25. AGL(1,𝔽7) | C42 | direct (N × H) |
| 29. C4×C7 | C2×C3×C4 | semidirect |
| 30. Dic7 | C2×C3×C4 | semidirect |
| 35. ΓL(1,𝔽8) | C2×C42 | semidirect |
| 38. C42 | AGL(1,𝔽7) | direct (N × H) |
| 40. D7 | C3×C42 | semidirect |
| 49. C7 | C2×C3×C42 | semidirect |
| 55. C4 | C4×AGL(1,𝔽7) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C4×AGL(1,𝔽7) | 2 |
| C42×ΓL(1,𝔽8) | 2 |
| C4×ΓL(1,𝔽8)⋊C4 | 2 |
| C42×D7 | 3 |
| C2×C3×C42 | 7 |