Finite Group Databasebeta

Dic162 #10619485

order648
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C1

Aliases

dicyclicDic162
unambiguous semidirect productC81⋊Q8

Splittings

SylowC81 ⋊ Q8

Subgroups

subgroupG/H
centerC2C2×D81
commutator, cosocleC2×C81C22
FrattiniC2×C27C2×D3
FittingC4×C81C2
socle, prime radicalC2×C3C2×D27
hypercenterC4D81
hypocenterC81Q8
LCSG ▷ C2×C81 ▷ C81
UCSC1 ◁ C2 ◁ C4

30 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 89
transitive degreeμt(G) = 648

A minimal faithful permutation representation — 2 generators on 89 points:

(1,2,3,4)(5,8,7,6)(9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89);(1,5,3,7)(2,6,4,8)(10,89)(11,88)(12,87)(13,86)(14,85)(15,84)(16,83)(17,82)(18,81)(19,80)(20,79)(21,78)(22,77)(23,76)(24,75)(25,74)(26,73)(27,72)(28,71)(29,70)(30,69)(31,68)(32,67)(33,66)(34,65)(35,64)(36,63)(37,62)(38,61)(39,60)(40,59)(41,58)(42,57)(43,56)(44,55)(45,54)(46,53)(47,52)(48,51)(49,50)

Polycyclic presentation:

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

Conjugacy classes & character table

165 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofDic324, #13046289, #13046297, …
maximal normal subgroup ofDic324, #13046289, #13046297, …
maximal quotient ofDic81⋊C4, C4⋊Dic81, C2×Dic162, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(648, 4);