Finite Group Databasebeta
Cayley diagram

C9⋊D27 #92205

order486
isoclinismisoclinic class of C9⋊D27
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C9

Aliases

unambiguous semidirect productC9⋊D27
unambiguous semidirect productC27⋊D9

Splittings

Fitting, derived, SylowC9×C27 ⋊ C2

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC9×C27C2
FrattiniC3×C9C3⋊D3
socleC32C3⋊D9
LCSG ▷ C9×C27
UCSC1

72 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 36
transitive degreeμt(G) = 243

A minimal faithful permutation representation — 3 generators on 36 points:

(2,4)(3,7)(5,6)(8,9)(11,14)(12,18)(13,21)(15,16)(17,27)(19,20)(22,29)(23,28)(24,34)(25,33)(26,32)(30,31)(35,36);(1,9,4,7,6,5,3,2,8);(10,29,23,30,34,32,12,11,33,13,36,27,19,16,15,20,17,35,21,25,14,18,26,24,31,28,22)

Polycyclic presentation:

2,3^5|b^3=d^2f,c^3=e^2,d^3=f^2,b^a=b^2d,c^a=c^2e,d^a=d^2f,e^a=e^2,f^a=f^2

Conjugacy classes & character table

123 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD9×D27, C2×C9⋊D27, C27⋊D27, …
maximal normal subgroup ofD9×D27, C2×C9⋊D27, #13090584, …
maximal quotient ofC9⋊Dic27, C2×C9⋊D27, C27⋊D27, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(486, 50);