#131657

order	512
nilpotency class	4
isoclinism	isoclinic class of #131654
automorphism	?
homology	Abelianization (H₁) = C₂²×C₄ · Schur multiplier (H₂) = C₂⁴

Aliases

No aliases for this group.

Subgroups

	subgroup	G/H
center, socle	C₂²	#1786
commutator	C₄×C₈	C₂²×C₄
Frattini, cosocle	C₂×C₄×C₈	C₂³
prime radical	#62417	C₂
LCS	G ▷ C₄×C₈ ▷ C₂×C₄ ▷ C₂ ▷ C₁
UCS	C₁ ◁ C₂² ◁ C₂×C₄² ◁ C₈×#41 ◁ G
LECS	G ▷ C₂×C₄×C₈ ▷ C₂×C₄ ▷ C₂ ▷ C₁

640 conjugacy classes of subgroups; only the 96 normal subgroups are shown.

normal subgroups only

This group has 640 conjugacy classes of subgroups — too many to draw. Only its 96 normal subgroups are shown.

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

Full subgroup data →

Presentation

minimal degree	μ(G) = 40
transitive degree	μ_t(G) = 128

A minimal faithful permutation representation — 3 generators on 40 points:

(1,2,4,7,5,3,8,6)(9,10,14,20,16,22,30,19,15,21,28,36,12,18,13,29)(11,23,26,34,24,35,39,38,27,37,40,17,31,33,25,32);(1,3)(2,5)(4,6)(7,8)(9,11,15,27)(10,17,21,34)(12,24,16,31)(13,26,30,40)(14,25,28,39)(18,32,22,38)(19,35,29,33)(20,37,36,23);(1,2)(3,5)(4,6)(7,8)(9,12,15,16)(10,18,21,22)(11,24,27,31)(13,28,30,14)(17,32,34,38)(19,20,29,36)(23,35,37,33)(25,26,39,40)

Polycyclic presentation:

2^9|a^2=f,b^2=i,c^2=i,d^2=hi,e^2=gi,f^2=h,h^2=i,b^a=bd,c^a=ce,d^a=dg,d^b=dh,f^b=fgh,h^b=hi,e^c=egi,f^c=fgi

Conjugacy classes & character table

59 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(512, 38853);