C₅×#3003 #10616598

order	640
nilpotency class	3
isoclinism	isoclinic class of #3003
automorphism	?
homology	Abelianization (H₁) = C₂⁴×C₅ · Schur multiplier (H₂) = C₂⁶

Aliases

	subgroup	G/H
center, socle	C₂²×C₅	C₂²×D₄
commutator, Frattini, cosocle	C₂×C₄	C₂⁴×C₅
LCS	G ▷ C₂×C₄ ▷ C₂ ▷ C₁
UCS	C₁ ◁ C₂²×C₅ ◁ C₂³×C₄×C₅ ◁ G

994 conjugacy classes of subgroups; only the 224 normal subgroups are shown.

normal subgroups only

This group has 994 conjugacy classes of subgroups — too many to draw. Only its 224 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

minimal degree	μ(G) = 17
transitive degree	μ_t(G) = 80

A minimal faithful permutation representation — 4 generators on 17 points:

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

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(640, 18680);