C₂×#2412 #34657

order	256
nilpotency class	2
isoclinism	isoclinic class of #2403
automorphism	Aut(G) order 1048576
homology	Abelianization (H₁) = C₂⁵ · Schur multiplier (H₂) = C₂⁹

Aliases

	subgroup	G/H
center, socle	C₂⁴	C₂⁴
commutator, Frattini, cosocle	C₂³	C₂⁵
prime radical	C₂²×#120	C₂
LCS	G ▷ C₂³ ▷ C₁
UCS	C₁ ◁ C₂⁴ ◁ G
LECS	G ▷ C₂³ ▷ C₁

2581 conjugacy classes of subgroups.

minimal degree	μ(G) = 18
transitive degree	μ_t(G) = 64

A minimal faithful permutation representation — 5 generators on 18 points:

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

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27645);