Finite Group Databasebeta
Cayley diagram

C9⋊(C22⋊C9) #66356

order324
isoclinismisoclinic class of C9⋊A4
automorphism?
homologyAbelianization (H1) = C3×C9 · Schur multiplier (H2) = C2×C3

Aliases

unambiguous semidirect productC9⋊(C22⋊C9)

Splittings

SylowC22 ⋊ C9⋊C9

Subgroups

subgroupG/H
center, FrattiniC32C3×A4
commutatorC22×C3C3×C9
FittingC22×C3×C9C3
socle, prime radical, cosocleC22×C32C32
hypercenterC3×C9A4
hypocenterC22C9⋊C9
LCSG ▷ C22×C3 ▷ C22
UCSC1 ◁ C32 ◁ C3×C9

44 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 162

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

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

Polycyclic presentation:

3^4,2^2|a^3=c,b^3=d,b^a=bd,e^a=f,f^a=ef

Conjugacy classes & character table

60 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD9⋊(C22⋊C9), C2×C9⋊(C22⋊C9), #11757429, …
maximal normal subgroup ofD9⋊(C22⋊C9), C2×C9⋊(C22⋊C9), #11757429, …
maximal quotient ofC9⋊(Q8⋊C9), C2×C9⋊(C22⋊C9), C9⋊(C22⋊C27), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(324, 48);