Finite Group Databasebeta
Cayley diagram

C2×C19⋊C3 #1173

order114
isoclinismisoclinic class of C19⋊C3
automorphismAut(G) = AGL(1,𝔽19) (order 342) · Inn(G) = C19⋊C3 · Out(G) = C2×C3
holomorphG ⋊ Aut(G) = C2×#72214746
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

direct productC2×C19⋊C3
unambiguous semidirect product(C2×C19)⋊C3

Splittings

Fitting, socle, HallC2×C19 ⋊ C3
derived, SylowC19 ⋊ C2×C3

Subgroups

subgroupG/H
center, hypercenterC2C19⋊C3
commutator, cosocle, hypocenterC19C2×C3
FrattiniC1G
Fitting, socleC2×C19C3
LCSG ▷ C19
UCSC1 ◁ C2

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 38

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

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

Conjugacy classes & character table

18 conjugacy classes — view the full character table.

Relationships

maximal subgroup of(C19⋊C3)⋊C4, C4×C19⋊C3, C2×D19⋊C3, …
maximal normal subgroup of(C19⋊C3)⋊C4, C4×C19⋊C3, C2×D19⋊C3, …
maximal quotient ofC4×C19⋊C3, C22×C19⋊C3, C2×#4294, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(114, 2);