Finite Group Databasebeta
Cayley diagram

C9×D17 #64557

order306
isoclinismisoclinic class of D17
automorphismAut(G) = C2×C3×AGL(1,𝔽17) (order 1632) · Inn(G) = D17 · Out(G) = C2×C3×C8
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

direct productC9×D17
unambiguous semidirect productC17⋊(C2×C9)

Splittings

Fitting, HallC9×C17 ⋊ C2
derived, SylowC17 ⋊ C2×C9

Subgroups

subgroupG/H
center, hypercenterC9D17
commutator, hypocenterC17C2×C9
FrattiniC3C3×D17
FittingC9×C17C2
socle, cosocleC3×C17C2×C3
prime radicalC3×D17C3
LCSG ▷ C17
UCSC1 ◁ C9

12 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 153

A minimal faithful permutation representation — 2 generators on 26 points:

(1,2,4,3,5,7,6,8,9)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24)(25,26);(10,11,13,15,17,19,21,23,25,26,24,22,20,18,16,14,12)

Conjugacy classes & character table

90 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC9×#595, C9⋊#595, D9×D17, …
maximal normal subgroup ofC9×#595, C9⋊#595, D9×D17, …
maximal quotient ofC9×Dic17, C2×C9×D17, C27×D17, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(306, 2);