C₂×#13420 #499093

order	512
nilpotency class	4
isoclinism	isoclinic class of #13343
automorphism	?
homology	Abelianization (H₁) = C₂⁴ · Schur multiplier (H₂) = C₂⁶

Aliases

	subgroup	G/H
center, socle	C₂³	B(4,𝔽₂)
commutator, Frattini, cosocle	C₂²×D₄	C₂⁴
prime radical	C₂²×#120	C₂²
LCS	G ▷ C₂²×D₄ ▷ C₂² ▷ C₂ ▷ C₁
UCS	C₁ ◁ C₂³ ◁ C₂⁴ ◁ C₂³×D₄ ◁ G
LECS	G ▷ C₂²×D₄ ▷ C₂² ▷ C₂ ▷ C₁

1704 conjugacy classes of subgroups.

minimal degree	μ(G) = 22
transitive degree	μ_t(G) = 64

A minimal faithful permutation representation — 4 generators on 22 points:

(1,2);(4,5)(7,8,11,14)(9,15,17,22)(10,13,18,21)(12,19,20,16);(3,4)(5,6)(10,18)(13,21);(3,5,6,4)(7,9)(8,12)(10,16)(11,17)(13,15)(14,20)(18,19)(21,22)

maximal subgroup of	C₂×#500781, C₂×#503468, C₂×#508063, …
maximal normal subgroup of	C₂×#500781, C₂×#503468, C₂×#508063, …

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(512, 406289);