Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| isoclinism | isoclinic class of #3958 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22 |
| direct product | C2×#64713 |
| Sylow | C5 ⋊ C2×#368 |
144 conjugacy classes of subgroups; only the 85 normal subgroups are shown.
This group has 144 conjugacy classes of subgroups — too many to draw. Only its 85 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 320 |
100 conjugacy classes — view the full character table.
| maximal subgroup of | #12014688, #12014690, #12014693, … |
| maximal normal subgroup of | #12014688, #12014690, #12014693, … |
| maximal quotient of | C2×#10597960, C2×#10597961, #12010883, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 3557);