Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
| direct product | D8×Dic10 |
| Sylow | C5 ⋊ Q8×D8 |
404 conjugacy classes of subgroups; only the 141 normal subgroups are shown.
This group has 404 conjugacy classes of subgroups — too many to draw. Only its 141 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 320 |
91 conjugacy classes — view the full character table.
| maximal subgroup of | #12012975, #12012979, #12013003, … |
| maximal normal subgroup of | #12012975, #12012979, #12013003, … |
| maximal quotient of | #102×Dic10, D8×#683, D8×C4⋊Dic5, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 13386);