Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4 |
| direct product | C2×#65785 |
| Fitting | C22×C5×Q8 ⋊ C4 |
| Sylow | C5 ⋊ C2×#410 |
788 conjugacy classes of subgroups; only the 202 normal subgroups are shown.
This group has 788 conjugacy classes of subgroups — too many to draw. Only its 202 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 160 |
64 conjugacy classes — view the full character table.
| maximal subgroup of | #13021730, #13021735, #13021760, … |
| maximal normal subgroup of | #13021730, #13021735, #13021760, … |
| maximal quotient of | C2×#10604289, C2×#10604290, C2×#10604976, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 19595);