Finite Group Databasebeta
Cayley diagram

C2×C7×3−1+2 #67393

order378
nilpotency class2
isoclinismisoclinic class of H(3,𝔽3)
automorphismAut(G) = C2×C3×#272 (order 324) · Inn(G) = C32 · Out(G) = C2×C3×D3
homologyAbelianization (H1) = C2×C32×C7 · Schur multiplier (H2) = C1

Aliases

direct productC2×C7×3−1+2
unambiguous semidirect product(C2×C9)⋊(C3×C7)

Subgroups

subgroupG/H
center, socleC2×C3×C7C32
commutator, Frattini, cosocleC3C2×C32×C7
prime radicalC2×C32×C7C3
LCSG ▷ C3 ▷ C1
UCSC1 ◁ C2×C3×C7 ◁ G

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 126

A minimal faithful permutation representation — 2 generators on 18 points:

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

Conjugacy classes & character table

154 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of3−1+2×Dic7, C7×3−1+2⋊C4, 3−1+2⋊Dic7, …
maximal subgroup of3−1+2×Dic7, C7×3−1+2⋊C4, 3−1+2⋊Dic7, …
maximal normal subgroup of3−1+2×Dic7, C7×3−1+2⋊C4, 3−1+2⋊Dic7, …
maximal quotient ofC4×C7×3−1+2, C22×C7×3−1+2, C2×C7×C32⋊C9, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(378, 46);