Finite Group DatabasebetaFinite Group Databasebeta| order | 21780 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C5 · Schur multiplier (H2) = C2 |
| direct product | D9×(C11⋊C5)⋊D11 |
| unambiguous semidirect product | (D9×C11⋊C5)⋊D11 |
| Fitting, derived, Hall | C9×C112 ⋊ C22×C5 |
| Hall | C9×C11×C11⋊C5 ⋊ C22 |
| Hall | D9×C11⋊D11 ⋊ C5 |
| Hall | C11×C11⋊C5 ⋊ C2×D9 |
| Sylow | C112 ⋊ C2×C5×D9 |
| Sylow | C9 ⋊ C2×(C11⋊C5)⋊D11 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C1 | G |
| commutator, Fitting, cosocle, hypocenter | C9×C112 | C22×C5 |
| Frattini | C3 | D3×(C11⋊C5)⋊D11 |
| socle | C3×C112 | C2×C5×D3 |
| LCS | G ▷ C9×C112 | |
| UCS | C1 | |
150 conjugacy classes of subgroups; only the 34 normal subgroups are shown.
This group has 150 conjugacy classes of subgroups — too many to draw. Only its 34 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
276 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(21780, 201);