Order 336.
108 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C2 | C22×AGL(1,𝔽7) |
| commutator, socle, cosocle | C2×C7 | C23×C3 |
| Fitting | C7×D4 | C2×C3 |
| hypercenter | D4 | AGL(1,𝔽7) |
| hypocenter | C7 | C2×C3×D4 |
| LCS | G ▷ C2×C7 ▷ C7 | |
| UCS | C1 ◁ C2 ◁ D4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C22×AGL(1,𝔽7) | C2 | semidirect |
| 2. D4×ΓL(1,𝔽8) | C2 | semidirect |
| 3. (C22⋊D7)⋊C3 | C2 | semidirect |
| 4. C4⋊AGL(1,𝔽7) | C2 | semidirect |
| 5. C4×AGL(1,𝔽7) | C2 | semidirect |
| 6. D4×D7 | C3 | semidirect |
| 7. C22×ΓL(1,𝔽8) | C22 | semidirect |
| 10. C2×AGL(1,𝔽7) | C22 | semidirect |
| 11. C4×ΓL(1,𝔽8) | C22 | semidirect |
| 12. ΓL(1,𝔽8)⋊C4 | C22 | semidirect |
| 13. C22×D7 | C2×C3 | semidirect |
| 14. C7×D4 | C2×C3 | semidirect |
| 15. C22⋊D7 | C2×C3 | semidirect |
| 16. D28 | C2×C3 | semidirect |
| 17. C4×D7 | C2×C3 | semidirect |
| 22. AGL(1,𝔽7) | D4 | direct (N × H) |
| 23. C22×C7 | C22×C3 | semidirect |
| 26. C2×D7 | C22×C3 | semidirect |
| 27. C4×C7 | C22×C3 | semidirect |
| 28. Dic7 | C22×C3 | semidirect |
| 34. ΓL(1,𝔽8) | C2×D4 | semidirect |
| 39. D7 | C3×D4 | semidirect |
| 49. D4 | AGL(1,𝔽7) | direct (N × H) |
| 51. C7 | C2×C3×D4 | semidirect |
| 59. C22 | C2×AGL(1,𝔽7) | semidirect |
| 61. C4 | C2×AGL(1,𝔽7) | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×AGL(1,𝔽7) | 2 |
| D4×ΓL(1,𝔽8) | 2 |
| (C22⋊D7)⋊C3 | 2 |
| C4⋊AGL(1,𝔽7) | 2 |
| C4×AGL(1,𝔽7) | 2 |
| D4×D7 | 3 |
| C2×C3×D4 | 7 |