Dic₄₁₈₀ #72215552

order	16720
automorphism	Aut(G) order 24076800
homology	Abelianization (H₁) = C₂² · Schur multiplier (H₂) = C₁

Aliases

dicyclic

Dic₄₁₈₀

Splittings

Hall	C₅×C₁₁×C₁₉ ⋊ Q₁₆
Hall	C₁₁×C₁₉ ⋊ Dic₂₀
Hall	C₅×C₁₉ ⋊ Dic₄₄
Hall	C₅×C₁₁ ⋊ Dic₇₆
Sylow	C₁₉ ⋊ Dic₂₂₀
Sylow	C₁₁ ⋊ Dic₃₈₀
Sylow	C₅ ⋊ Dic₈₃₆

Subgroups

	subgroup	G/H
center	C₂	D₄₁₈₀
commutator, cosocle	C₄×C₅×C₁₁×C₁₉	C₂²
Frattini	C₄	C₂×D₁₀₄₅
Fitting	C₅×C₈×C₁₁×C₁₉	C₂
socle, prime radical	C₂×C₅×C₁₁×C₁₉	D₄
hypercenter	C₈	D₁₀₄₅
hypocenter	C₅×C₁₁×C₁₉	Q₁₆
LCS	G ▷ C₄×C₅×C₁₁×C₁₉ ▷ C₂×C₅×C₁₁×C₁₉ ▷ C₅×C₁₁×C₁₉
UCS	C₁ ◁ C₂ ◁ C₄ ◁ C₈

72 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 51
transitive degree	μ_t(G) = 16720

A minimal faithful permutation representation — 2 generators on 51 points:

(1,2,3,4,5,6,7,8)(9,16,15,14,13,12,11,10)(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);(1,9,5,13)(2,10,6,14)(3,11,7,15)(4,12,8,16)(18,21)(19,20)(23,32)(24,31)(25,30)(26,29)(27,28)(34,51)(35,50)(36,49)(37,48)(38,47)(39,46)(40,45)(41,44)(42,43)

Polycyclic presentation:

2^4,5,11,19|a^2=d,b^2=cd,c^2=d,b^a=bc,c^a=cd,e^a=e^4,f^a=f^10,g^a=g^18

Conjugacy classes & character table

4183 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of	Dic₈₃₆₀, Dic₁₂₅₄₀
maximal normal subgroup of	Dic₈₃₆₀
maximal quotient of	Dic₁₂₅₄₀

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", "g");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 5, 11, 19]);;
gap> SetPower(coll, 1, F.4);;
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.5^4);;
gap> SetConjugate(coll, 6, 1, F.6^10);;
gap> SetConjugate(coll, 7, 1, F.7^18);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);

Dic4180 #72215552