C₂×#552 #3470

order	128
nilpotency class	2
isoclinism	isoclinic class of D₄²
automorphism	Aut(G) order 32768
homology	Abelianization (H₁) = C₂⁵ · Schur multiplier (H₂) = C₂⁸

Aliases

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

562 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);(3,4,7,8)(5,6,9,10)(13,17)(15,18);(4,8)(6,10)(11,12,14,16)(13,15,17,18);(3,5,7,9)(4,6,8,10)(11,13)(12,15)(14,17)(16,18);(3,6)(4,9)(5,8)(7,10)

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2202);