Finite Group Databasebeta
Cayley diagram

C4×D15 #1217

order120
isoclinismisoclinic class of D15
automorphismAut(G) = C22×D3×AGL(1,𝔽5) (order 480) · Inn(G) = D15 · Out(G) = C22×C4
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

direct productC4×D15

Splittings

FittingC3×C4×C5 ⋊ C2
derived, HallC3×C5 ⋊ C2×C4
SylowC5 ⋊ C4×D3
SylowC3 ⋊ C4×D5

Subgroups

subgroupG/H
center, hypercenterC4D15
commutator, hypocenterC3×C5C2×C4
FrattiniC2C2×D15
FittingC3×C4×C5C2
socle, cosocleC2×C3×C5C22
prime radicalC2×D15C2
LCSG ▷ C3×C5
UCSC1 ◁ 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:

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

Conjugacy classes & character table

36 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#6648, #6651, C8×D15, …
maximal normal subgroup of#6648, #6651, C8×D15, …
maximal quotient ofC8×D15, #6705, C4×Dic15, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(120, 27);