Finite Group Databasebeta
Cayley diagram

C2×#611 #3703

order144
isoclinismisoclinic class of Dic18
automorphismAut(G) = #120×AGL(1,ℤ/9) (order 1728) · Inn(G) = C2×D9 · Out(G) = C2×C3×D4
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

direct productC2×#611

Splittings

FittingC23×C9 ⋊ C2
SylowC9 ⋊ C2×D4

Subgroups

subgroupG/H
centerC22C2×D9
commutator, cosocleC2×C9C23
FrattiniC2×C3C22×D3
FittingC23×C9C2
socleC22×C3C2×D3
hypercenterC23D9
hypocenterC9C2×D4
LCSG ▷ C2×C9 ▷ C9
UCSC1 ◁ C22 ◁ C23

81 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 72

A minimal faithful permutation representation — 3 generators on 15 points:

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

Conjugacy classes & character table

42 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#63365, #611⋊C4, #63444, …
maximal normal subgroup of#63365, #611⋊C4, #63444, …
maximal quotient ofC2×Dic9⋊C4, #63486, C2×(C2×D9)⋊C4, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(144, 46);