Order 15616.
310 conjugacy classes of subgroups.
The subgroup lattice has 242 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 31. C8×Dic61 | C8 | semidirect |
| 139. C61 | #8780 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #21445505 | 2 |
| #21444567 | 2 |
| #21443663 | 2 |
| #21443647 | 2 |
| C61×#1564 | 2 |
| #8780 | 61 |