Finite Group DatabasebetaFinite Group DatabasebetaOrder 640.
564 conjugacy classes of subgroups; only the 161 normal subgroups are shown.
This group has 564 conjugacy classes of subgroups — too many to draw. Only its 161 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C23 | C23×D5 |
| commutator, socle, cosocle | C23×C5 | C24 |
| Fitting | C5×#382 | C2 |
| prime radical | C22×D20 | C22 |
| hypercenter | #382 | D5 |
| hypocenter | C5 | #2580 |
| LCS | G ▷ C23×C5 ▷ C5 | |
| UCS | C1 ◁ C23 ◁ #382 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C2×C4×Dic10 | C2 | semidirect |
| 3. C5×#382 | C2 | semidirect |
| 5. #65274 | C2 | semidirect |
| 6. #64966 | C2 | semidirect |
| 7. #64962 | C2 | semidirect |
| 8. #64957 | C2 | semidirect |
| 38. C2×D20 | Q8 | semidirect |
| 60. #382 | D5 | semidirect |
| 181. C5 | #2580 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C4×D20 | 2 |
| C2×C4×Dic10 | 2 |
| C5×#382 | 2 |
| #65277 | 2 |
| #65274 | 2 |
| #64966 | 2 |
| #64962 | 2 |
| #64957 | 2 |
| #2580 | 5 |