Finite Group Databasebeta

C2×#72220166 #72252758

order5184
automorphism?
homologyAbelianization (H1) = C22×C9 · Schur multiplier (H2) = C23

Aliases

direct productC2×#72220166

Splittings

derivedC22×C22⋊C9 ⋊ C22×C9

Subgroups

subgroupG/H
center, hypercenterC2×C3((C22⋊C9)⋊C2)⋊A4
commutator, hypocenterC22×C22⋊C9C22×C9
FrattiniC32C2×A4×S4
Fitting, socleC25×C32C3×D3
prime radicalC23×C3×(C22⋊C9)⋊C2C3
cosocleC22×C3×C22⋊C9C22×C3
LCSG ▷ C22×C22⋊C9
UCSC1 ◁ C2×C3

1222 conjugacy classes of subgroups; only the 61 normal subgroups are shown.

normal subgroups only

This group has 1222 conjugacy classes of subgroups — too many to draw. Only its 61 normal subgroups are shown.

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

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 108

A minimal faithful permutation representation — 2 generators on 28 points:

(1,2)(4,5,6)(7,8,10)(11,15,19,13,18,14,16,12,17)(20,27,26,23,24,28,21,22,25);(3,6)(4,5)(8,9)(21,23)(22,25)(24,26)(27,28)

Conjugacy classes & character table

168 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#72220173
maximal normal subgroup ofC2×#72220173

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

gap> G := Group((1,2)(4,5,6)(7,8,10)(11,15,19,13,18,14,16,12,17)(20,27,26,23,24,28,21,22,25), (3,6)(4,5)(8,9)(21,23)(22,25)(24,26)(27,28));