Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| isoclinism | isoclinic class of #64945 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
| direct product | C2×#65268 |
| Sylow | C5 ⋊ C2×#395 |
908 conjugacy classes of subgroups; only the 277 normal subgroups are shown.
This group has 908 conjugacy classes of subgroups — too many to draw. Only its 277 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 640 |
124 conjugacy classes — view the full character table.
| maximal subgroup of | #11994292, #11994294, #11994297, … |
| maximal normal subgroup of | #11994292, #11994294, #11994297, … |
| maximal quotient of | C2×#10600202, C2×#10602358, C2×#10602361, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 15977);