Finite Group DatabasebetaFinite Group DatabasebetaOrder 640.
948 conjugacy classes of subgroups; only the 177 normal subgroups are shown.
This group has 948 conjugacy classes of subgroups — too many to draw. Only its 177 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 |
| hypercenter | #390 | D5 |
| hypocenter | C5 | #2541 |
| LCS | G ▷ C23×C5 ▷ C5 | |
| UCS | C1 ◁ C23 ◁ #390 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×#4086 | C2 | semidirect |
| 2. C2×#4086 | C2 | semidirect |
| 3. C2×#4039 | C2 | semidirect |
| 4. C2×#4030 | C2 | semidirect |
| 5. C2×#4020 | C2 | semidirect |
| 6. C5×#390 | C2 | semidirect |
| 7. #65277 | C2 | semidirect |
| 8. #65249 | C2 | semidirect |
| 9. C4×#683 | C2 | semidirect |
| 60. C2×D20 | D4 | semidirect |
| 68. #683 | D4 | semidirect |
| 70. C4×Dic5 | D4 | semidirect |
| 78. #390 | D5 | semidirect |
| 163. C4×C5 | #121 | semidirect |
| 166. Dic5 | #127 | semidirect |
| 252. C5 | #2541 | semidirect |
| 278. C4 | #4030 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#4086 | 2 |
| C2×#4039 | 2 |
| C2×#4030 | 2 |
| C2×#4020 | 2 |
| C5×#390 | 2 |
| #65277 | 2 |
| #65249 | 2 |
| C4×#683 | 2 |
| #2541 | 5 |