Finite Group DatabasebetaFinite Group Databasebeta| order | 20988 |
| automorphism | ? |
| homology | Abelianization (H1) = C22 · Schur multiplier (H2) = C2 |
| direct product | D11×D477 |
| unambiguous semidirect product | (C9×D11)⋊D53 |
| unambiguous semidirect product | (D11×C53)⋊D9 |
| Fitting, derived, Hall | C9×C11×C53 ⋊ C22 |
| Hall | C11×C53 ⋊ C2×D9 |
| Hall | C9×C53 ⋊ C2×D11 |
| Hall | C9×C11 ⋊ C2×D53 |
| Sylow | C53 ⋊ D9×D11 |
| Sylow | C11 ⋊ C2×D477 |
| Sylow | C9 ⋊ D11×D53 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C1 | G |
| commutator, Fitting, cosocle, hypocenter | C9×C11×C53 | C22 |
| Frattini | C3 | D11×D159 |
| socle | C3×C11×C53 | C2×D3 |
| LCS | G ▷ C9×C11×C53 | |
| UCS | C1 | |
60 conjugacy classes of subgroups.
| transitive degree | μt(G) = 5247 |
1680 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(20988, 18);