Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| isoclinism | isoclinic class of #677 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C8 · Schur multiplier (H2) = C23 |
| direct product | C2×#64677 |
| Sylow | C5 ⋊ C2×#334 |
200 conjugacy classes of subgroups; only the 141 normal subgroups are shown.
This group has 200 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) = 640 |
184 conjugacy classes — view the full character table.
| maximal subgroup of | #11986173, #11986174, #11986177, … |
| maximal normal subgroup of | #11986173, #11986174, #11986177, … |
| maximal quotient of | C2×#10598145, C4×#64677, #11992135, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 2602);