Finite Group DatabasebetaFinite Group DatabasebetaOrder 640.
244 conjugacy classes of subgroups; only the 63 normal subgroups are shown.
This group has 244 conjugacy classes of subgroups — too many to draw. Only its 63 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. #65851 | C2 | semidirect |
| 5. C5×#344 | C2 | semidirect |
| 6. #64777 | C2 | semidirect |
| 7. #64775 | C2 | semidirect |
| 31. C2×D20 | Q8 | semidirect |
| 34. C2×Dic10 | Q8 | semidirect |
| 60. #344 | D5 | semidirect |
| 183. C5 | #2031 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #65851 | 2 |
| #65428 | 2 |
| C2×#3957 | 2 |
| #65295 | 2 |
| C5×#344 | 2 |
| #64777 | 2 |
| #64775 | 2 |
| #2031 | 5 |