Finite Group Databasebeta

D2268 #72210365

order4536
automorphismAut(G) order 1469664
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD2268

Splittings

FittingC4×C7×C81 ⋊ C2
HallC7×C81 ⋊ D4
SylowC81 ⋊ D28
SylowC7 ⋊ D324

Subgroups

subgroupG/H
centerC2C2×D567
commutator, cosocleC2×C7×C81C22
FrattiniC2×C27C2×D21
FittingC4×C7×C81C2
socleC2×C3×C7C2×D27
hypercenterC4D567
hypocenterC7×C81D4
LCSG ▷ C2×C7×C81 ▷ C7×C81
UCSC1 ◁ C2 ◁ C4

80 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 92
transitive degreeμt(G) = 2268

A minimal faithful permutation representation — 2 generators on 92 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)(86,87,88,89,90,91,92);(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)(87,92)(88,91)(89,90)

Polycyclic presentation:

2^3,3,7,3^3|b^2=c,d^3=f,f^3=g,g^3=h,b^a=bc,d^a=d^2f^2g^2h^2,e^a=e^6,f^a=f^2g^2h^2,g^a=g^2h^2,h^a=h^2

Conjugacy classes & character table

1137 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD4536, D6804, D11340, …
maximal normal subgroup ofD4536
maximal quotient ofD4536, D6804, Dic2268, …

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from its polycyclic presentation:

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e", "f", "g", "h");;
gap> coll := SingleCollector(F, [2, 2, 2, 3, 7, 3, 3, 3]);;
gap> SetPower(coll, 2, F.3);;
gap> SetPower(coll, 4, F.6);;
gap> SetPower(coll, 6, F.7);;
gap> SetPower(coll, 7, F.8);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 4, 1, F.4^2*F.6^2*F.7^2*F.8^2);;
gap> SetConjugate(coll, 5, 1, F.5^6);;
gap> SetConjugate(coll, 6, 1, F.6^2*F.7^2*F.8^2);;
gap> SetConjugate(coll, 7, 1, F.7^2*F.8^2);;
gap> SetConjugate(coll, 8, 1, F.8^2);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);