Finite Group Databasebeta
Cayley diagram

C2×3−1+2 #275

order54
nilpotency class2
isoclinismisoclinic class of H(3,𝔽3)
automorphismAut(G) = #272 (order 54) · Inn(G) = C32 · Out(G) = D3
holomorphG ⋊ Aut(G) = C2×#13091120
homologyAbelianization (H1) = C2×C32 · Schur multiplier (H2) = C1

Aliases

direct productC2×3−1+2
unambiguous semidirect product(C2×C9)⋊C3

Subgroups

subgroupG/H
center, socleC2×C3C32
commutator, Frattini, cosocleC3C2×C32
prime radicalC2×C32C3
LCSG ▷ C3 ▷ C1
UCSC1 ◁ C2×C3 ◁ G

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 11
transitive degreeμt(G) = 18

A minimal faithful permutation representation — 2 generators on 11 points:

(1,2)(3,4,6,5,8,10,9,7,11);(4,7,8)(6,10,11)

Conjugacy classes & character table

22 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of3−1+2⋊C4, C2×AGL(1,ℤ/9)
maximal subgroup of3−1+2⋊C4, C4×3−1+2, C2×AGL(1,ℤ/9), …
maximal normal subgroup of3−1+2⋊C4, C4×3−1+2, C2×AGL(1,ℤ/9), …
maximal quotient ofC4×3−1+2, C22×3−1+2, C2×C32⋊C9, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(54, 11);