Finite Group Databasebeta
Cayley diagram

C4×C9⋊C9 #66336

order324
nilpotency class2
isoclinismisoclinic class of H(3,𝔽3)
automorphismAut(G) = C2×C3×#4183 (order 972) · Inn(G) = C32 · Out(G) = C2×#272
homologyAbelianization (H1) = C3×C4×C9 · Schur multiplier (H2) = C3

Aliases

direct productC4×C9⋊C9
unambiguous semidirect product(C4×C9)⋊C9

Subgroups

subgroupG/H
centerC32×C4C32
commutatorC3C3×C4×C9
Frattini, socle, prime radical, cosocleC2×C32C2×C32
LCSG ▷ C3 ▷ C1
UCSC1 ◁ C32×C4 ◁ G

51 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 324

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

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

Conjugacy classes & character table

132 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of(C9⋊C8)⋊C9, Dic18⋊C9, C4×D9⋊C9, …
maximal subgroup of(C9⋊C8)⋊C9, C8×C9⋊C9, Dic18⋊C9, …
maximal normal subgroup of(C9⋊C8)⋊C9, C8×C9⋊C9, Dic18⋊C9, …
maximal quotient ofC8×C9⋊C9, C2×C4×C9⋊C9, C4×#6855, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(324, 28);