Finite Group Databasebeta
Cayley diagram

Dic81 #66309

order324
isoclinismisoclinic class of D81
automorphism?
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C1

Aliases

dicyclicDic81
unambiguous semidirect productC81⋊C4

Splittings

derived, SylowC81 ⋊ C4

Subgroups

subgroupG/H
center, hypercenterC2D81
commutator, hypocenterC81C4
FrattiniC2×C27D3
Fitting, cosocleC2×C81C2
socle, prime radicalC2×C3D27
LCSG ▷ C81
UCSC1 ◁ C2

15 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 85
transitive degreeμt(G) = 324

A minimal faithful permutation representation — 2 generators on 85 points:

(1,2)(3,4)(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85);(1,3,2,4)(6,85)(7,84)(8,83)(9,82)(10,81)(11,80)(12,79)(13,78)(14,77)(15,76)(16,75)(17,74)(18,73)(19,72)(20,71)(21,70)(22,69)(23,68)(24,67)(25,66)(26,65)(27,64)(28,63)(29,62)(30,61)(31,60)(32,59)(33,58)(34,57)(35,56)(36,55)(37,54)(38,53)(39,52)(40,51)(41,50)(42,49)(43,48)(44,47)(45,46)

Polycyclic presentation:

2^2,3^4|a^2=b,c^3=d^2e,d^3=e^2f,e^3=f^2,c^a=c^2d,d^a=d^2e,e^a=e^2f,f^a=f^2

Conjugacy classes & character table

84 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofDic162, C4×D81, C2×Dic81, …
maximal normal subgroup ofDic162, C4×D81, C2×Dic81, …
maximal quotient ofC81⋊C8, C2×Dic81, Dic243, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(324, 1);