Finite Group Databasebeta

C9×#4003 #13083965

order1440
isoclinismisoclinic class of #700
automorphism?
homologyAbelianization (H1) = C2×C8×C9 · Schur multiplier (H2) = C22

Aliases

direct productC9×#4003

Splittings

HallC5×C9 ⋊ C22⋊C8
SylowC5 ⋊ C9×C22⋊C8

Subgroups

subgroupG/H
centerC22×C9C2×AGL(1,𝔽5)
commutatorC2×C5C2×C8×C9
FrattiniC22×C3C2×C3×AGL(1,𝔽5)
FittingC2×C4×C5×C9C4
socleC22×C3×C5C2×C3×C4
prime radicalC22×C3×D5C3×C4
cosocleC2×C3×Dic5C22×C3
hypercenterC2×C4×C9AGL(1,𝔽5)
hypocenterC5C9×C22⋊C8
LCSG ▷ C2×C5 ▷ C5
UCSC1 ◁ C22×C9 ◁ C2×C4×C9

150 conjugacy classes of subgroups; only the 66 normal subgroups are shown.

normal subgroups only

This group has 150 conjugacy classes of subgroups — too many to draw. Only its 66 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) = 26
transitive degreeμt(G) = 720

A minimal faithful permutation representation — 2 generators on 26 points:

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

Conjugacy classes & character table

252 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1440, 282);