Finite Group DatabasebetaFinite Group DatabasebetaOrder 640.
284 conjugacy classes of subgroups; only the 91 normal subgroups are shown.
This group has 284 conjugacy classes of subgroups — too many to draw. Only its 91 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 |
|---|---|---|
| 4. #65217 | C2 | semidirect |
| 5. C2×#3935 | C2 | semidirect |
| 6. #64749 | C2 | semidirect |
| 7. #64749 | C2 | semidirect |
| 19. #3964 | C4 | semidirect |
| 205. C5 | #1936 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C5×#390 | 2 |
| C2×#3964 | 2 |
| #65217 | 2 |
| C2×#3935 | 2 |
| #64749 | 2 |
| #1936 | 5 |