Finite Group Databasebeta

C2×#72252963 #72269045

order7776
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2×C3

Aliases

direct productC2×#72252963

Splittings

derivedC9×Q8⋊C9 ⋊ C22×C3

Subgroups

subgroupG/H
center, hypercenterC22#14518082
commutator, cosocle, hypocenterC9×Q8⋊C9C22×C3
FrattiniC2×C32C2×C3×C3⋊S4
FittingC2×C3×Q8×3−1+2D3
socleC22×C32C3×C3⋊S4
LCSG ▷ C9×Q8⋊C9
UCSC1 ◁ C22

1266 conjugacy classes of subgroups; only the 124 normal subgroups are shown.

normal subgroups only

This group has 1266 conjugacy classes of subgroups — too many to draw. Only its 124 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) = 1296

A minimal faithful permutation representation — 3 generators on 28 points:

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

Conjugacy classes & character table

162 conjugacy classes — view the full character table.

GAP

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

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