Finite Group Databasebeta

D10724 #72215575

order21448
automorphismAut(G) order 49158816
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD10724

Splittings

FittingC4×C7×C383 ⋊ C2
HallC7×C383 ⋊ D4
SylowC383 ⋊ D28
SylowC7 ⋊ D1532

Subgroups

subgroupG/H
center, FrattiniC2C2×D2681
commutator, socle, cosocleC2×C7×C383C22
FittingC4×C7×C383C2
hypercenterC4D2681
hypocenterC7×C383D4
LCSG ▷ C2×C7×C383 ▷ C7×C383
UCSC1 ◁ C2 ◁ C4

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 394
transitive degreeμt(G) = 10724

A minimal faithful permutation representation — 2 generators on 394 points:

(1,2,3,4)(5,6,7,8,9,10,11)(12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394);(2,4)(6,11)(7,10)(8,9)(13,394)(14,393)(15,392)(16,391)(17,390)(18,389)(19,388)(20,387)(21,386)(22,385)(23,384)(24,383)(25,382)(26,381)(27,380)(28,379)(29,378)(30,377)(31,376)(32,375)(33,374)(34,373)(35,372)(36,371)(37,370)(38,369)(39,368)(40,367)(41,366)(42,365)(43,364)(44,363)(45,362)(46,361)(47,360)(48,359)(49,358)(50,357)(51,356)(52,355)(53,354)(54,353)(55,352)(56,351)(57,350)(58,349)(59,348)(60,347)(61,346)(62,345)(63,344)(64,343)(65,342)(66,341)(67,340)(68,339)(69,338)(70,337)(71,336)(72,335)(73,334)(74,333)(75,332)(76,331)(77,330)(78,329)(79,328)(80,327)(81,326)(82,325)(83,324)(84,323)(85,322)(86,321)(87,320)(88,319)(89,318)(90,317)(91,316)(92,315)(93,314)(94,313)(95,312)(96,311)(97,310)(98,309)(99,308)(100,307)(101,306)(102,305)(103,304)(104,303)(105,302)(106,301)(107,300)(108,299)(109,298)(110,297)(111,296)(112,295)(113,294)(114,293)(115,292)(116,291)(117,290)(118,289)(119,288)(120,287)(121,286)(122,285)(123,284)(124,283)(125,282)(126,281)(127,280)(128,279)(129,278)(130,277)(131,276)(132,275)(133,274)(134,273)(135,272)(136,271)(137,270)(138,269)(139,268)(140,267)(141,266)(142,265)(143,264)(144,263)(145,262)(146,261)(147,260)(148,259)(149,258)(150,257)(151,256)(152,255)(153,254)(154,253)(155,252)(156,251)(157,250)(158,249)(159,248)(160,247)(161,246)(162,245)(163,244)(164,243)(165,242)(166,241)(167,240)(168,239)(169,238)(170,237)(171,236)(172,235)(173,234)(174,233)(175,232)(176,231)(177,230)(178,229)(179,228)(180,227)(181,226)(182,225)(183,224)(184,223)(185,222)(186,221)(187,220)(188,219)(189,218)(190,217)(191,216)(192,215)(193,214)(194,213)(195,212)(196,211)(197,210)(198,209)(199,208)(200,207)(201,206)(202,205)(203,204)

Polycyclic presentation:

2^3,7,383|b^2=c,b^a=bc,d^a=d^6,e^a=e^382

Conjugacy classes & character table

5365 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD21448, D32172
maximal normal subgroup ofD21448
maximal quotient ofDic10724, D21448, D32172

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, 7, 383]);;
gap> SetPower(coll, 2, F.3);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 4, 1, F.4^6);;
gap> SetConjugate(coll, 5, 1, F.5^382);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);