Finite Group Databasebeta

D7×#4430⋊C2 #72229779

order5292
automorphism?
homologyAbelianization (H1) = C22×C32 · Schur multiplier (H2) = C2

Aliases

direct productD7×#4430⋊C2

Splittings

HallC7×#4430 ⋊ C22
HallD72 ⋊ 3−1+2
SylowC72 ⋊ C22×3−1+2

Subgroups

subgroupG/H
center, FrattiniC3C3×D7×AGL(1,𝔽7)
commutator, socle, cosocleC3×C72C22×C32
FittingC32×C72C22×C3
prime radicalC32×D72C3
hypercenterC32D7×AGL(1,𝔽7)
hypocenterC72C22×3−1+2
LCSG ▷ C3×C72 ▷ C72
UCSC1 ◁ C3 ◁ C32

172 conjugacy classes of subgroups; only the 58 normal subgroups are shown.

normal subgroups only

This group has 172 conjugacy classes of subgroups — too many to draw. Only its 58 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) = 23
transitive degreeμt(G) = 126

A minimal faithful permutation representation — 2 generators on 23 points:

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

Conjugacy classes & character table

155 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72229823
maximal normal subgroup of#72229823

GAP

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

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