Finite Group Databasebeta
Cayley diagram

C3×C9×D5 #63187

order270
isoclinismisoclinic class of D5
automorphism?
homologyAbelianization (H1) = C2×C3×C9 · Schur multiplier (H2) = C3

Aliases

direct productC3×C9×D5
unambiguous semidirect productC5⋊(C2×C3×C9)

Splittings

Fitting, HallC3×C5×C9 ⋊ C2
derived, SylowC5 ⋊ C2×C3×C9

Subgroups

subgroupG/H
center, hypercenterC3×C9D5
commutator, hypocenterC5C2×C3×C9
FrattiniC3C32×D5
FittingC3×C5×C9C2
socleC32×C5C2×C3
prime radicalC32×D5C3
cosocleC3×C5C2×C32
LCSG ▷ C5
UCSC1 ◁ C3×C9

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 17
transitive degreeμt(G) = 135

A minimal faithful permutation representation — 2 generators on 17 points:

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

Conjugacy classes & character table

108 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC3×C9×AGL(1,𝔽5), C3×C9⋊AGL(1,𝔽5), C9×ΓL(1,𝔽16), …
maximal normal subgroup ofC3×C9×AGL(1,𝔽5), C3×C9⋊AGL(1,𝔽5), C9×ΓL(1,𝔽16), …
maximal quotient ofC3×C9×Dic5, C2×C3×C9×D5, C92×D5, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(270, 5);