Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| isoclinism | isoclinic class of #64671 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
| direct product | C2×#64701 |
| Sylow | C5 ⋊ C2×#333 |
256 conjugacy classes of subgroups; only the 117 normal subgroups are shown.
This group has 256 conjugacy classes of subgroups — too many to draw. Only its 117 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 640 |
118 conjugacy classes — view the full character table.
| maximal subgroup of | #11990243, C4×#64701, #11990256, … |
| maximal normal subgroup of | #11990243, C4×#64701, #11990256, … |
| maximal quotient of | C2×#10597971, #11987281, #11987588, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 3311);