Finite Group Databasebeta

D28896 #72292503

order57792
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD28896

Splittings

FittingC3×C7×C32×C43 ⋊ C2
HallC3×C7×C43 ⋊ D32
HallC7×C43 ⋊ D96
HallC3×C43 ⋊ D224
SylowC43 ⋊ D672
HallC3×C7 ⋊ D1376
SylowC7 ⋊ D4128
SylowC3 ⋊ D9632

Subgroups

subgroupG/H
centerC2D14448
commutator, cosocleC3×C7×C16×C43C22
FrattiniC16C2×D903
FittingC3×C7×C32×C43C2
socleC2×C3×C7×C43D16
hypercenterC32D903
hypocenterC3×C7×C43D32
LCSG ▷ C3×C7×C16×C43 ▷ C3×C7×C8×C43 ▷ C3×C4×C7×C43 ▷ C2×C3×C7×C43 ▷ C3×C7×C43
UCSC1 ◁ C2 ◁ C4 ◁ C8 ◁ C16 ◁ C32

136 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 85
transitive degreeμt(G) = 28896

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

Polycyclic presentation:

2^6,3,7,43|b^2=cd,c^2=de,d^2=ef,e^2=f,b^a=bc,c^a=cd,d^a=de,e^a=ef,g^a=g^2,h^a=h^6,i^a=i^42

Conjugacy classes & character table

14451 conjugacy classes. The character table is too large to display.

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", "i");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 2, 2, 3, 7, 43]);;
gap> SetPower(coll, 2, F.3*F.4);;
gap> SetPower(coll, 3, F.4*F.5);;
gap> SetPower(coll, 4, F.5*F.6);;
gap> SetPower(coll, 5, F.6);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 3, 1, F.3*F.4);;
gap> SetConjugate(coll, 4, 1, F.4*F.5);;
gap> SetConjugate(coll, 5, 1, F.5*F.6);;
gap> SetConjugate(coll, 7, 1, F.7^2);;
gap> SetConjugate(coll, 8, 1, F.8^6);;
gap> SetConjugate(coll, 9, 1, F.9^42);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);