Finite Group Databasebeta

Dic421 #13132995

order1684
isoclinismisoclinic class of D421
automorphismAut(G) order 353640
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C1

Aliases

dicyclicDic421

Splittings

derived, SylowC421 ⋊ C4

Subgroups

subgroupG/H
center, Frattini, hypercenterC2D421
commutator, hypocenterC421C4
Fitting, socle, prime radical, cosocleC2×C421C2
LCSG ▷ C421
UCSC1 ◁ C2

6 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 425
transitive degreeμt(G) = 1684

A minimal faithful permutation representation — 2 generators on 425 points:

(1,2)(3,4)(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425);(1,3,2,4)(6,425)(7,424)(8,423)(9,422)(10,421)(11,420)(12,419)(13,418)(14,417)(15,416)(16,415)(17,414)(18,413)(19,412)(20,411)(21,410)(22,409)(23,408)(24,407)(25,406)(26,405)(27,404)(28,403)(29,402)(30,401)(31,400)(32,399)(33,398)(34,397)(35,396)(36,395)(37,394)(38,393)(39,392)(40,391)(41,390)(42,389)(43,388)(44,387)(45,386)(46,385)(47,384)(48,383)(49,382)(50,381)(51,380)(52,379)(53,378)(54,377)(55,376)(56,375)(57,374)(58,373)(59,372)(60,371)(61,370)(62,369)(63,368)(64,367)(65,366)(66,365)(67,364)(68,363)(69,362)(70,361)(71,360)(72,359)(73,358)(74,357)(75,356)(76,355)(77,354)(78,353)(79,352)(80,351)(81,350)(82,349)(83,348)(84,347)(85,346)(86,345)(87,344)(88,343)(89,342)(90,341)(91,340)(92,339)(93,338)(94,337)(95,336)(96,335)(97,334)(98,333)(99,332)(100,331)(101,330)(102,329)(103,328)(104,327)(105,326)(106,325)(107,324)(108,323)(109,322)(110,321)(111,320)(112,319)(113,318)(114,317)(115,316)(116,315)(117,314)(118,313)(119,312)(120,311)(121,310)(122,309)(123,308)(124,307)(125,306)(126,305)(127,304)(128,303)(129,302)(130,301)(131,300)(132,299)(133,298)(134,297)(135,296)(136,295)(137,294)(138,293)(139,292)(140,291)(141,290)(142,289)(143,288)(144,287)(145,286)(146,285)(147,284)(148,283)(149,282)(150,281)(151,280)(152,279)(153,278)(154,277)(155,276)(156,275)(157,274)(158,273)(159,272)(160,271)(161,270)(162,269)(163,268)(164,267)(165,266)(166,265)(167,264)(168,263)(169,262)(170,261)(171,260)(172,259)(173,258)(174,257)(175,256)(176,255)(177,254)(178,253)(179,252)(180,251)(181,250)(182,249)(183,248)(184,247)(185,246)(186,245)(187,244)(188,243)(189,242)(190,241)(191,240)(192,239)(193,238)(194,237)(195,236)(196,235)(197,234)(198,233)(199,232)(200,231)(201,230)(202,229)(203,228)(204,227)(205,226)(206,225)(207,224)(208,223)(209,222)(210,221)(211,220)(212,219)(213,218)(214,217)(215,216)

Polycyclic presentation:

2^2,421|a^2=b,c^a=c^420

Conjugacy classes & character table

424 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×D421, C2×Dic421, C22⋊D421, …
maximal normal subgroup ofC4×D421, C2×Dic421, C22⋊D421, …
maximal quotient of#16809890, C2×Dic421, C7×Dic421, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1684, 1);