Finite Group Databasebeta
Cayley diagram

C3×D20 #1208

order120
isoclinismisoclinic class of Dic10
automorphismAut(G) = C2×D4×AGL(1,𝔽5) (order 320) · Inn(G) = C2×D5 · Out(G) = C22×C4
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

direct productC3×D20
unambiguous semidirect productC4⋊(C3×D5)

Splittings

FittingC3×C4×C5 ⋊ C2
HallC3×C5 ⋊ D4
SylowC5 ⋊ C3×D4

Subgroups

subgroupG/H
centerC2×C3C2×D5
commutator, cosocleC2×C5C22×C3
FrattiniC2C2×C3×D5
FittingC3×C4×C5C2
socleC2×C3×C5C22
hypercenterC3×C4D5
hypocenterC5C3×D4
LCSG ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C3 ◁ C3×C4

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 12
transitive degreeμt(G) = 60

A minimal faithful permutation representation — 2 generators on 12 points:

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

Conjugacy classes & character table

39 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#6652, #6653, #6655, …
maximal normal subgroup of#6652, #6653, #6655, …
maximal quotient ofC3×#677, C3×D40, C3×Dic20, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(120, 18);