Finite Group DatabasebetaFinite Group DatabasebetaOrder 640.
676 conjugacy classes of subgroups; only the 157 normal subgroups are shown.
This group has 676 conjugacy classes of subgroups — too many to draw. Only its 157 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×#390 | C2 |
| prime radical | C2×#4086 | C2 |
| hypercenter | #390 | D5 |
| hypocenter | C5 | #2548 |
| LCS | G ▷ C23×C5 ▷ C5 | |
| UCS | C1 ◁ C23 ◁ #390 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C2×#4082 | C2 | semidirect |
| 3. C2×#4033 | C2 | semidirect |
| 4. C2×#4021 | C2 | semidirect |
| 5. C5×#390 | C2 | semidirect |
| 6. #65277 | C2 | semidirect |
| 7. #65248 | C2 | semidirect |
| 8. #65246 | C2 | semidirect |
| 9. C4×#683 | C2 | semidirect |
| 53. C2×Dic10 | D4 | semidirect |
| 72. #390 | D5 | semidirect |
| 150. Dic5 | #124 | semidirect |
| 225. C5 | #2548 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#4086 | 2 |
| C2×#4082 | 2 |
| C2×#4033 | 2 |
| C2×#4021 | 2 |
| C5×#390 | 2 |
| #65277 | 2 |
| #65248 | 2 |
| #65246 | 2 |
| C4×#683 | 2 |
| #2548 | 5 |