Finite Group Databasebeta

D6740 #72212367

order13480
automorphismAut(G) order 18117120
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD6740

Splittings

FittingC4×C5×C337 ⋊ C2
HallC5×C337 ⋊ D4
SylowC337 ⋊ D20
SylowC5 ⋊ D1348

Subgroups

subgroupG/H
center, FrattiniC2C2×D1685
commutator, socle, cosocleC2×C5×C337C22
FittingC4×C5×C337C2
hypercenterC4D1685
hypocenterC5×C337D4
LCSG ▷ C2×C5×C337 ▷ C5×C337
UCSC1 ◁ C2 ◁ C4

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 346
transitive degreeμt(G) = 6740

A minimal faithful permutation representation — 2 generators on 346 points:

(1,2,3,4)(5,6,7,8,9)(10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346);(2,4)(6,9)(7,8)(11,346)(12,345)(13,344)(14,343)(15,342)(16,341)(17,340)(18,339)(19,338)(20,337)(21,336)(22,335)(23,334)(24,333)(25,332)(26,331)(27,330)(28,329)(29,328)(30,327)(31,326)(32,325)(33,324)(34,323)(35,322)(36,321)(37,320)(38,319)(39,318)(40,317)(41,316)(42,315)(43,314)(44,313)(45,312)(46,311)(47,310)(48,309)(49,308)(50,307)(51,306)(52,305)(53,304)(54,303)(55,302)(56,301)(57,300)(58,299)(59,298)(60,297)(61,296)(62,295)(63,294)(64,293)(65,292)(66,291)(67,290)(68,289)(69,288)(70,287)(71,286)(72,285)(73,284)(74,283)(75,282)(76,281)(77,280)(78,279)(79,278)(80,277)(81,276)(82,275)(83,274)(84,273)(85,272)(86,271)(87,270)(88,269)(89,268)(90,267)(91,266)(92,265)(93,264)(94,263)(95,262)(96,261)(97,260)(98,259)(99,258)(100,257)(101,256)(102,255)(103,254)(104,253)(105,252)(106,251)(107,250)(108,249)(109,248)(110,247)(111,246)(112,245)(113,244)(114,243)(115,242)(116,241)(117,240)(118,239)(119,238)(120,237)(121,236)(122,235)(123,234)(124,233)(125,232)(126,231)(127,230)(128,229)(129,228)(130,227)(131,226)(132,225)(133,224)(134,223)(135,222)(136,221)(137,220)(138,219)(139,218)(140,217)(141,216)(142,215)(143,214)(144,213)(145,212)(146,211)(147,210)(148,209)(149,208)(150,207)(151,206)(152,205)(153,204)(154,203)(155,202)(156,201)(157,200)(158,199)(159,198)(160,197)(161,196)(162,195)(163,194)(164,193)(165,192)(166,191)(167,190)(168,189)(169,188)(170,187)(171,186)(172,185)(173,184)(174,183)(175,182)(176,181)(177,180)(178,179)

Polycyclic presentation:

2^3,5,337|b^2=c,b^a=bc,d^a=d^4,e^a=e^336

Conjugacy classes & character table

3373 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD13480, D20220
maximal normal subgroup ofD13480
maximal quotient ofD13480, Dic6740, D20220

GAP

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

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e");;
gap> coll := SingleCollector(F, [2, 2, 2, 5, 337]);;
gap> SetPower(coll, 2, F.3);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 4, 1, F.4^4);;
gap> SetConjugate(coll, 5, 1, F.5^336);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);