Order 324.
86 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C3 | D3×D9 |
| commutator, cosocle, hypocenter | C3×C9 | C22×C3 |
| Frattini | C3 | C3×D32 |
| Fitting | C32×C9 | C22 |
| socle | C33 | C2×D3 |
| LCS | G ▷ C3×C9 | |
| UCS | C1 ◁ C3 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C3×C3⋊D9 | C2 | semidirect |
| 2. C3×D3×C9 | C2 | semidirect |
| 3. C32×D9 | C2 | semidirect |
| 6. D3×D9 | C3 | direct (N × H) |
| 7. C32×C9 | C22 | semidirect |
| 12. C3⋊D9 | C2×C3 | semidirect |
| 14. D3×C9 | C2×C3 | semidirect |
| 18. C3×D9 | D3 | direct (N × H) |
| 19. C3×D9 | C2×C3 | semidirect |
| 29. C3×C9 | C2×D3 | semidirect |
| 30. C3×C9 | C22×C3 | semidirect |
| 41. C3×D3 | D9 | direct (N × H) |
| 47. D9 | C3×D3 | direct (N × H) |
| 55. C32 | C2×D9 | semidirect |
| 61. C9 | C2×C3×D3 | semidirect |
| 73. D3 | C3×D9 | direct (N × H) |
| 79. C3 | D3×D9 | direct (N × H) |
| 80. C3 | C2×C3×D9 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C3×C3⋊D9 | 2 |
| C3×D3×C9 | 2 |
| C32×D9 | 2 |
| C3×D32 | 3 |
| C2×C3×D9 | 3 |
| D3×D9 | 3 |