Finite Group DatabasebetaFinite Group Databasebeta| order | 21204 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C9 · Schur multiplier (H2) = C2 |
| direct product | D31×#4294⋊C2 |
| unambiguous semidirect product | (D31×#4294)⋊C2 |
| unambiguous semidirect product | (C31×#4294⋊C2)⋊C2 |
| unambiguous semidirect product | (#4294⋊D31)⋊C2 |
| derived, Hall | C19×C31 ⋊ C22×C9 |
| Hall | C31×#4294 ⋊ C22 |
| Hall | D19×D31 ⋊ C9 |
| Hall | #4294 ⋊ C2×D31 |
| Sylow | C31 ⋊ C2×#4294⋊C2 |
| Sylow | C19 ⋊ C2×C9×D31 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C3 | D31×D19⋊C3 |
| commutator, hypocenter | C19×C31 | C22×C9 |
| Fitting, socle, cosocle | C3×C19×C31 | C22×C3 |
| prime radical | C3×D19×D31 | C3 |
| LCS | G ▷ C19×C31 | |
| UCS | C1 ◁ C3 | |
60 conjugacy classes of subgroups.
| transitive degree | μt(G) = 5301 |
459 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(21204, 28);