Finite Group Databasebeta

D7424 #72212810

order14848
automorphismAut(G) order 26607616
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD7424

Splittings

FittingC29×C256 ⋊ C2
SylowC29 ⋊ D256

Subgroups

subgroupG/H
centerC2D3712
commutator, cosocleC29×C128C22
FrattiniC128C2×D29
FittingC29×C256C2
socleC2×C29D128
hypercenterC256D29
hypocenterC29D256
LCSG ▷ C29×C128 ▷ C29×C64 ▷ C29×C32 ▷ C16×C29 ▷ C8×C29 ▷ C4×C29 ▷ C2×C29 ▷ C29
UCSC1 ◁ C2 ◁ C4 ◁ C8 ◁ C16 ◁ C32 ◁ C64 ◁ C128 ◁ C256

52 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 285
transitive degreeμt(G) = 7424

A minimal faithful permutation representation — 2 generators on 285 points:

(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256)(257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285);(2,256)(3,255)(4,254)(5,253)(6,252)(7,251)(8,250)(9,249)(10,248)(11,247)(12,246)(13,245)(14,244)(15,243)(16,242)(17,241)(18,240)(19,239)(20,238)(21,237)(22,236)(23,235)(24,234)(25,233)(26,232)(27,231)(28,230)(29,229)(30,228)(31,227)(32,226)(33,225)(34,224)(35,223)(36,222)(37,221)(38,220)(39,219)(40,218)(41,217)(42,216)(43,215)(44,214)(45,213)(46,212)(47,211)(48,210)(49,209)(50,208)(51,207)(52,206)(53,205)(54,204)(55,203)(56,202)(57,201)(58,200)(59,199)(60,198)(61,197)(62,196)(63,195)(64,194)(65,193)(66,192)(67,191)(68,190)(69,189)(70,188)(71,187)(72,186)(73,185)(74,184)(75,183)(76,182)(77,181)(78,180)(79,179)(80,178)(81,177)(82,176)(83,175)(84,174)(85,173)(86,172)(87,171)(88,170)(89,169)(90,168)(91,167)(92,166)(93,165)(94,164)(95,163)(96,162)(97,161)(98,160)(99,159)(100,158)(101,157)(102,156)(103,155)(104,154)(105,153)(106,152)(107,151)(108,150)(109,149)(110,148)(111,147)(112,146)(113,145)(114,144)(115,143)(116,142)(117,141)(118,140)(119,139)(120,138)(121,137)(122,136)(123,135)(124,134)(125,133)(126,132)(127,131)(128,130)(258,285)(259,284)(260,283)(261,282)(262,281)(263,280)(264,279)(265,278)(266,277)(267,276)(268,275)(269,274)(270,273)(271,272)

Polycyclic presentation:

2^9,29|b^2=cd,c^2=de,d^2=ef,e^2=fg,f^2=gh,g^2=hi,h^2=i,b^a=bc,c^a=cd,d^a=de,e^a=ef,f^a=fg,g^a=gh,h^a=hi,j^a=j^28

Conjugacy classes & character table

3715 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD14848, D22272
maximal normal subgroup ofD14848
maximal quotient ofD14848, Dic7424, D22272

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", "j");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 2, 2, 2, 2, 2, 29]);;
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*F.7);;
gap> SetPower(coll, 6, F.7*F.8);;
gap> SetPower(coll, 7, F.8*F.9);;
gap> SetPower(coll, 8, F.9);;
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, 6, 1, F.6*F.7);;
gap> SetConjugate(coll, 7, 1, F.7*F.8);;
gap> SetConjugate(coll, 8, 1, F.8*F.9);;
gap> SetConjugate(coll, 10, 1, F.10^28);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);