Finite Group Databasebeta

C22×#87520 #72341490

order1536
automorphism?
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C28

Aliases

direct productC22×#87520

Splittings

FittingC22×#585 ⋊ D3

Subgroups

subgroupG/H
center, hypercenterC22×C4#1020
commutator, cosocle, hypocenter#997C24
FrattiniC2C23×#1020
FittingC22×#585D3
socleC23C2×#1020
LCSG ▷ #997
UCSC1 ◁ C22×C4

12857 conjugacy classes of subgroups; only the 158 normal subgroups are shown.

normal subgroups only

This group has 12857 conjugacy classes of subgroups — too many to draw. Only its 158 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) = 20
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 20 points:

(3,4)(7,16,13)(8,15,14)(10,20,17)(11,19,18);(1,2)(3,4)(5,19)(6,7)(8,18)(9,10)(11,16)(12,15)(13,20)(14,17);(1,2);(7,13)(8,15)(10,17)(11,19)(14,16)(18,20)

Conjugacy classes & character table

104 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72341494, C2×#72215767, C2×#72236738, …
maximal normal subgroup of#72341494, C2×#72215767, C2×#72236738, …
maximal quotient ofC2×C4×#87520

GAP

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

gap> G := Group((3,4)(7,16,13)(8,15,14)(10,20,17)(11,19,18), (1,2)(3,4)(5,19)(6,7)(8,18)(9,10)(11,16)(12,15)(13,20)(14,17), (1,2), (7,13)(8,15)(10,17)(11,19)(14,16)(18,20));