Order 720.
54 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 16. C5×C9 | Q16 | semidirect |
| 32. C9 | Dic20 | semidirect |
| 36. C5 | Dic36 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| Dic90 | 2 |
| C5×C8×C9 | 2 |
| Dic60 | 3 |
| Dic36 | 5 |