#490815

order	512
nilpotency class	4
isoclinism	isoclinic class of #490801
automorphism	?
homology	Abelianization (H₁) = C₂⁴ · Schur multiplier (H₂) = C₂⁴

Aliases

No aliases for this group.

Subgroups

	subgroup	G/H
center, socle	C₂²	C₂×#459
commutator, Frattini, cosocle	C₄×C₈	C₂⁴
prime radical	#19647	C₂
LCS	G ▷ C₄×C₈ ▷ C₂×C₄ ▷ C₂ ▷ C₁
UCS	C₁ ◁ C₂² ◁ C₂×C₄² ◁ C₈×M₁₆ ◁ G
LECS	G ▷ C₄×C₈ ▷ C₂×C₄ ▷ C₂ ▷ C₁

482 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 40
transitive degree	μ_t(G) = 256

A minimal faithful permutation representation — 4 generators on 40 points:

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

Polycyclic presentation:

2^9|b^2=e,c^2=i,e^2=g,f^2=hi,h^2=i,b^a=be,c^a=cf,d^a=di,e^a=eg,f^a=fh,h^a=hi,d^b=dgi,f^c=fh,h^c=hi

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, 398011);