Finite Group Databasebeta

C2×D21×C227 #34040157

order19068
automorphism?
homologyAbelianization (H1) = C22×C227 · Schur multiplier (H2) = C2

Aliases

direct productC2×D21×C227
unambiguous semidirect product(C2×C3)⋊(D7×C227)
unambiguous semidirect product(C2×C7)⋊(D3×C227)

Splittings

Fitting, socleC2×C3×C7×C227 ⋊ C2
derived, HallC3×C7 ⋊ C22×C227
HallC3×C7×C227 ⋊ C22
HallC7×C227 ⋊ C2×D3
HallC3×C227 ⋊ C2×D7
SylowC7 ⋊ C2×D3×C227
SylowC3 ⋊ C2×D7×C227

Subgroups

subgroupG/H
center, hypercenterC2×C227D21
commutator, cosocle, hypocenterC3×C7C22×C227
FrattiniC1G
Fitting, socleC2×C3×C7×C227C2
LCSG ▷ C3×C7
UCSC1 ◁ C2×C227

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 9534

Conjugacy classes & character table

5448 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19068, 29);