Finite Group Databasebeta

A4×D9×AGL(1,𝔽5) #72247688

order4320
automorphism?
homologyAbelianization (H1) = C2×C3×C4 · Schur multiplier (H2) = C22

Aliases

direct productA4×D9×AGL(1,𝔽5)

Splittings

Fitting, derivedC22×C5×C9 ⋊ C2×C3×C4
SylowC5 ⋊ C4×A4×D9

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, hypocenterC22×C5×C9C2×C3×C4
FrattiniC3D3×A4×AGL(1,𝔽5)
socleC22×C3×C5C3×C4×D3
prime radicalD5×A4×D9C2
cosocleC22×C9×D5C22×C3
LCSG ▷ C22×C5×C9
UCSC1

420 conjugacy classes of subgroups; only the 54 normal subgroups are shown.

normal subgroups only

This group has 420 conjugacy classes of subgroups — too many to draw. Only its 54 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) = 18
transitive degreeμt(G) = 180

A minimal faithful permutation representation — 2 generators on 18 points:

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

Conjugacy classes & character table

120 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofA4×AGL(1,𝔽5)×AGL(1,ℤ/9), D9×AGL(1,𝔽5)×S4
maximal normal subgroup ofA4×AGL(1,𝔽5)×AGL(1,ℤ/9), D9×AGL(1,𝔽5)×S4

GAP

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

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