Order 216.
54 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×D3×C9 | C2 | semidirect |
| 2. C3×C4×C9 | C2 | semidirect |
| 11. C4×C9 | D3 | semidirect |
| 12. C3×C9 | D4 | semidirect |
| 14. D12 | C9 | direct (N × H) |
| 21. C2×D3 | C2×C9 | semidirect |
| 23. C3×C4 | C2×C9 | semidirect |
| 27. C9 | D12 | direct (N × H) |
| 35. C4 | D3×C9 | semidirect |
| 37. C3 | D4×C9 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×D3×C9 | 2 |
| C3×C4×C9 | 2 |
| C3×D12 | 3 |
| D4×C9 | 3 |