D₂₂₇₈₀ #72277839

order	45560
automorphism	?
homology	Abelianization (H₁) = C₂² · Schur multiplier (H₂) = C₂

Aliases

dihedral

D₂₂₇₈₀

Splittings

Fitting	C₄×C₅×C₁₇×C₆₇ ⋊ C₂
Hall	C₅×C₁₇×C₆₇ ⋊ D₄
Hall	C₁₇×C₆₇ ⋊ D₂₀
Hall	C₅×C₆₇ ⋊ D₆₈
Hall	C₅×C₁₇ ⋊ D₂₆₈
Sylow	C₆₇ ⋊ D₃₄₀
Sylow	C₁₇ ⋊ D₁₃₄₀
Sylow	C₅ ⋊ D₄₅₅₆

Subgroups

	subgroup	G/H
center, Frattini	C₂	C₂×D₅₆₉₅
commutator, socle, cosocle	C₂×C₅×C₁₇×C₆₇	C₂²
Fitting	C₄×C₅×C₁₇×C₆₇	C₂
hypercenter	C₄	D₅₆₉₅
hypocenter	C₅×C₁₇×C₆₇	D₄
LCS	G ▷ C₂×C₅×C₁₇×C₆₇ ▷ C₅×C₁₇×C₆₇
UCS	C₁ ◁ C₂ ◁ C₄

64 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 93
transitive degree	μ_t(G) = 22780

A minimal faithful permutation representation — 2 generators on 93 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);(2,4)(6,9)(7,8)(11,26)(12,25)(13,24)(14,23)(15,22)(16,21)(17,20)(18,19)(28,93)(29,92)(30,91)(31,90)(32,89)(33,88)(34,87)(35,86)(36,85)(37,84)(38,83)(39,82)(40,81)(41,80)(42,79)(43,78)(44,77)(45,76)(46,75)(47,74)(48,73)(49,72)(50,71)(51,70)(52,69)(53,68)(54,67)(55,66)(56,65)(57,64)(58,63)(59,62)(60,61)

Polycyclic presentation:

2^3,5,17,67|b^2=c,b^a=bc,d^a=d^4,e^a=e^16,f^a=f^66

Conjugacy classes & character table

11393 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, 5, 17, 67]);;
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.5^16);;
gap> SetConjugate(coll, 6, 1, F.6^66);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);

D22780 #72277839