Finite Group Databasebeta

C2×C9⋊#1084 #14517753

order1944
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2×C32

Aliases

direct productC2×C9⋊#1084
unambiguous semidirect product(C2×C9)⋊#1084

Splittings

derived, SylowC9×H(3,𝔽3) ⋊ C2×C4

Subgroups

subgroupG/H
center, hypercenterC22×C3C3⋊(C3⋊D9)
commutator, hypocenterC9×H(3,𝔽3)C2×C4
FrattiniC2×C32C2×C3⋊(C3⋊D3)
FittingC22×C9×H(3,𝔽3)C2
socleC22×C32C3⋊(C3⋊D3)
prime radicalC22×C3×H(3,𝔽3)D3
cosocleC2×C9×H(3,𝔽3)C22
LCSG ▷ C9×H(3,𝔽3)
UCSC1 ◁ C22×C3

698 conjugacy classes of subgroups; only the 268 normal subgroups are shown.

normal subgroups only

This group has 698 conjugacy classes of subgroups — too many to draw. Only its 268 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 216

Conjugacy classes & character table

216 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1944, 2147);