Finite Group Databasebeta
Cayley diagram

C5×C9⋊C8 #67071

order360
isoclinismisoclinic class of D9
automorphismAut(G) = C22×C4×AGL(1,ℤ/9) (order 864) · Inn(G) = D9 · Out(G) = C22×C3×C4
homologyAbelianization (H1) = C5×C8 · Schur multiplier (H2) = C1

Aliases

direct productC5×C9⋊C8
unambiguous semidirect productC9⋊(C5×C8)

Splittings

derived, SylowC9 ⋊ C5×C8
HallC5×C9 ⋊ C8

Subgroups

subgroupG/H
center, hypercenterC4×C5D9
commutator, hypocenterC9C5×C8
FrattiniC3×C4C5×D3
FittingC4×C5×C9C2
socle, prime radicalC2×C3×C5Dic3
cosocleC4×C9C2×C5
LCSG ▷ C9
UCSC1 ◁ C4×C5

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 360

A minimal faithful permutation representation — 2 generators on 22 points:

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

Conjugacy classes & character table

120 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10623539, #10623541, D5×C9⋊C8, …
maximal normal subgroup of#10623539, #10623541, D5×C9⋊C8, …
maximal quotient ofC5×C9⋊C16, C2×C5×C9⋊C8, C5×C27⋊C8, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(360, 1);