Finite Group Databasebeta
Cayley diagram

(C22⋊C9)⋊Q8 #63684

order288
automorphismAut(G) = D4×((C22⋊C9)⋊C2)⋊C3 (order 1728) · Inn(G) = C2×(C22⋊C9)⋊C2 · Out(G) = C22×C3
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product(C22⋊C9)⋊Q8

Subgroups

subgroupG/H
centerC2C2×(C22⋊C9)⋊C2
commutator, cosocleC2×C22⋊C9C22
FrattiniC2×C3C2×S4
FittingC22×C3×C4D3
socle, prime radicalC23×C3C2×D3
hypercenterC4(C22⋊C9)⋊C2
hypocenterC22⋊C9Q8
LCSG ▷ C2×C22⋊C9 ▷ C22⋊C9
UCSC1 ◁ C2 ◁ C4

72 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 72

A minimal faithful permutation representation — 2 generators on 21 points:

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

Polycyclic presentation:

2^3,3^2,2^2|a^2=c,b^2=c,d^3=e^2,b^a=bc,d^a=d^2e,e^a=e^2,f^a=g,g^a=f,f^d=g,g^d=fg

Conjugacy classes & character table

30 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10589500, #10589503, #10589516, …
maximal normal subgroup of#10589500, #10589503, #10589516, …
maximal quotient of#10589488, #10589491, #10589493, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(288, 332);