Finite Group DatabasebetaFinite Group Databasebeta| order | 18990 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C3 · Schur multiplier (H2) = C1 |
| unambiguous semidirect product | C3⋊(C5⋊(D211⋊C3)) |
| unambiguous semidirect product | C5⋊(C3⋊(D211⋊C3)) |
| unambiguous semidirect product | (C211⋊C3)⋊D15 |
| unambiguous semidirect product | D3165⋊C3 |
| Fitting, socle, derived | C3×C5×C211 ⋊ C2×C3 |
| Hall | C3×C5×C211⋊C3 ⋊ C2 |
| Hall | C3×C211⋊C3 ⋊ D5 |
| Hall | C5×C211 ⋊ C3×D3 |
| Sylow | C211 ⋊ C3×D15 |
| Sylow | C5 ⋊ C3⋊(D211⋊C3) |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, cosocle, hypocenter | C3×C5×C211 | C2×C3 |
| LCS | G ▷ C3×C5×C211 | |
| UCS | C1 | |
36 conjugacy classes of subgroups.
| transitive degree | μt(G) = 3165 |
Polycyclic presentation:
2,3^2,5,211|c^a=c^2,d^a=d^4,e^a=e^210,e^b=e^14552 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(18990, 34);