Order 720.
78 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 8. Dic45 | C4 | semidirect |
| 25. C5×C9 | C4⋊C4 | semidirect |
| 55. C9 | #683 | semidirect |
| 62. C5 | Dic9⋊C4 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C4×C5×C9 | 2 |
| C2×Dic45 | 2 |
| #6712 | 3 |
| Dic9⋊C4 | 5 |