D₁₉₈₆₄ #72274188

order	39728
automorphism	?
homology	Abelianization (H₁) = C₂² · Schur multiplier (H₂) = C₂

Aliases

dihedral

D₁₉₈₆₄

Splittings

Fitting	C₈×C₁₃×C₁₉₁ ⋊ C₂
Hall	C₁₃×C₁₉₁ ⋊ D₈
Sylow	C₁₉₁ ⋊ D₁₀₄
Sylow	C₁₃ ⋊ D₁₅₂₈

Subgroups

	subgroup	G/H
center	C₂	D₉₉₃₂
commutator, cosocle	C₄×C₁₃×C₁₉₁	C₂²
Frattini	C₄	C₂×D₂₄₈₃
Fitting	C₈×C₁₃×C₁₉₁	C₂
socle	C₂×C₁₃×C₁₉₁	D₄
hypercenter	C₈	D₂₄₈₃
hypocenter	C₁₃×C₁₉₁	D₈
LCS	G ▷ C₄×C₁₃×C₁₉₁ ▷ C₂×C₁₃×C₁₉₁ ▷ C₁₃×C₁₉₁
UCS	C₁ ◁ C₂ ◁ C₄ ◁ C₈

44 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 212
transitive degree	μ_t(G) = 19864

A minimal faithful permutation representation — 2 generators on 212 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);(2,8)(3,7)(4,6)(10,21)(11,20)(12,19)(13,18)(14,17)(15,16)(23,212)(24,211)(25,210)(26,209)(27,208)(28,207)(29,206)(30,205)(31,204)(32,203)(33,202)(34,201)(35,200)(36,199)(37,198)(38,197)(39,196)(40,195)(41,194)(42,193)(43,192)(44,191)(45,190)(46,189)(47,188)(48,187)(49,186)(50,185)(51,184)(52,183)(53,182)(54,181)(55,180)(56,179)(57,178)(58,177)(59,176)(60,175)(61,174)(62,173)(63,172)(64,171)(65,170)(66,169)(67,168)(68,167)(69,166)(70,165)(71,164)(72,163)(73,162)(74,161)(75,160)(76,159)(77,158)(78,157)(79,156)(80,155)(81,154)(82,153)(83,152)(84,151)(85,150)(86,149)(87,148)(88,147)(89,146)(90,145)(91,144)(92,143)(93,142)(94,141)(95,140)(96,139)(97,138)(98,137)(99,136)(100,135)(101,134)(102,133)(103,132)(104,131)(105,130)(106,129)(107,128)(108,127)(109,126)(110,125)(111,124)(112,123)(113,122)(114,121)(115,120)(116,119)(117,118)

Polycyclic presentation:

2^4,13,191|b^2=cd,c^2=d,b^a=bc,c^a=cd,e^a=e^12,f^a=f^190

Conjugacy classes & character table

9935 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");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 13, 191]);;
gap> SetPower(coll, 2, F.3*F.4);;
gap> SetPower(coll, 3, F.4);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 3, 1, F.3*F.4);;
gap> SetConjugate(coll, 5, 1, F.5^12);;
gap> SetConjugate(coll, 6, 1, F.6^190);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);

D19864 #72274188