C₂²×D₅×C₁₁ #89196

order	440
isoclinism	isoclinic class of D₅
automorphism	?
homology	Abelianization (H₁) = C₂³×C₁₁ · Schur multiplier (H₂) = C₂³

Aliases

direct product	C₂²×D₅×C₁₁
unambiguous semidirect product	C₅⋊(C₂³×C₁₁)
unambiguous semidirect product	(C₂×C₅)⋊(C₂²×C₁₁)

	subgroup	G/H
center, hypercenter	C₂²×C₁₁	D₅
commutator, cosocle, hypocenter	C₅	C₂³×C₁₁
Frattini	C₁	G
Fitting, socle	C₂²×C₅×C₁₁	C₂
LCS	G ▷ C₅
UCS	C₁ ◁ C₂²×C₁₁

64 conjugacy classes of subgroups.

minimal degree	μ(G) = 20
transitive degree	μ_t(G) = 220

A minimal faithful permutation representation — 3 generators on 20 points:

(1,2)(3,4)(6,7)(8,9)(10,11,12,13,14,15,16,17,18,19,20);(3,4)(5,6,8,9,7);(1,2)

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(440, 49);