Finite Group DatabasebetaFinite Group Databasebeta| order | 21204 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C3 · Schur multiplier (H2) = C2 |
| unambiguous semidirect product | #16812975⋊D3 |
| Fitting, socle, derived | C3×C19×C31 ⋊ C22×C3 |
| Hall | C3×#13183715 ⋊ C22 |
| Hall | C19×C31 ⋊ C2×C3×D3 |
| Sylow | C31 ⋊ D3×D19⋊C3 |
| Sylow | C19 ⋊ D3×D31⋊C3 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, cosocle, hypocenter | C3×C19×C31 | C22×C3 |
| LCS | G ▷ C3×C19×C31 | |
| UCS | C1 | |
88 conjugacy classes of subgroups.
| transitive degree | μt(G) = 1767 |
Polycyclic presentation:
2^2,3^2,19,31|e^a=e^18,f^a=f^30,d^b=d^2,e^b=e^18,e^c=e^7,f^c=f^25177 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(21204, 156);