C₂×#2545 #34900

order	256
nilpotency class	2
isoclinism	isoclinic class of #2403
automorphism	Aut(G) order 2097152
homology	Abelianization (H₁) = C₂⁵ · Schur multiplier (H₂) = C₂⁹

Aliases

	subgroup	G/H
center, socle	C₂⁴	C₂⁴
commutator, Frattini, cosocle	C₂³	C₂⁵
prime radical	C₂³×D₄	C₂²
LCS	G ▷ C₂³ ▷ C₁
UCS	C₁ ◁ C₂⁴ ◁ G
LECS	G ▷ C₂³ ▷ C₁

1655 conjugacy classes of subgroups.

minimal degree	μ(G) = 18
transitive degree	μ_t(G) = 128

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

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

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27888);