Order 504.
96 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C22×C3 | AGL(1,𝔽7) |
| commutator, hypocenter | C7 | C23×C9 |
| Frattini | C3 | C22×AGL(1,𝔽7) |
| Fitting, socle | C22×C3×C7 | C2×C3 |
| prime radical | C22×C3×D7 | C3 |
| cosocle | C3×C7 | C23×C3 |
| LCS | G ▷ C7 | |
| UCS | C1 ◁ C22×C3 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C22×C7⋊C9 | C2 | semidirect |
| 2. C2×D7⋊C9 | C2 | direct (N × H) |
| 4. C2×C7⋊C9 | C22 | semidirect |
| 5. D7⋊C9 | C22 | direct (N × H) |
| 9. C7⋊C9 | C23 | semidirect |
| 10. C22×D7 | C9 | semidirect |
| 15. C22×C7 | C2×C9 | semidirect |
| 16. C2×D7 | C2×C9 | semidirect |
| 21. C2×C7 | C22×C9 | semidirect |
| 22. D7 | C22×C9 | semidirect |
| 27. C7 | C23×C9 | semidirect |
| 31. C22 | D7⋊C9 | direct (N × H) |
| 34. C2 | C2×D7⋊C9 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C7⋊C9 | 2 |
| C2×D7⋊C9 | 2 |
| C22×C3×D7 | 3 |
| C23×C9 | 7 |