D₈₉₁₁ #31821346

order	17822
automorphism	?
homology	Abelianization (H₁) = C₂ · Schur multiplier (H₂) = C₁

Aliases

dihedral	D₈₉₁₁
unambiguous semidirect product	C₇⋊D₁₂₇₃
unambiguous semidirect product	C₁₉⋊D₄₆₉
unambiguous semidirect product	C₆₇⋊D₁₃₃

Splittings

Fitting, socle, derived, Hall	C₇×C₁₉×C₆₇ ⋊ C₂
Hall	C₁₉×C₆₇ ⋊ D₇
Hall	C₇×C₆₇ ⋊ D₁₉
Hall	C₇×C₁₉ ⋊ D₆₇
Sylow	C₆₇ ⋊ D₁₃₃
Sylow	C₁₉ ⋊ D₄₆₉
Sylow	C₇ ⋊ D₁₂₇₃

Subgroups

	subgroup	G/H
center, Frattini, hypercenter	C₁	G
commutator, Fitting, socle, cosocle, hypocenter	C₇×C₁₉×C₆₇	C₂
LCS	G ▷ C₇×C₁₉×C₆₇
UCS	C₁

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 93
transitive degree	μ_t(G) = 8911

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);(2,7)(3,6)(4,5)(9,26)(10,25)(11,24)(12,23)(13,22)(14,21)(15,20)(16,19)(17,18)(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:

2,7,19,67|b^a=b^6,c^a=c^18,d^a=d^66

Conjugacy classes & character table

4457 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of	D₆₇×D₁₃₃, D₁₉×D₄₆₉, D₇×D₁₂₇₃, …
maximal normal subgroup of	D₆₇×D₁₃₃, D₁₉×D₄₆₉, D₇×D₁₂₇₃, …
maximal quotient of	Dic₈₉₁₁, C₂×D₈₉₁₁

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17822, 8);

D8911 #31821346