C₂×#7680920 #72331468

order	1024
nilpotency class	2
automorphism	?
homology	Abelianization (H₁) = C₂⁷ · Schur multiplier (H₂) = C₂¹⁹

Aliases

direct product

C₂×#7680920

Subgroups

	subgroup	G/H
center, socle	C₂⁴	C₂⁶
commutator, Frattini, cosocle	C₂³	C₂⁷
LCS	G ▷ C₂³ ▷ C₁
UCS	C₁ ◁ C₂⁴ ◁ G
LECS	G ▷ C₂³ ▷ C₁

83631 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 22
transitive degree	μ_t(G) = 128

A minimal faithful permutation representation — 7 generators on 22 points:

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

Conjugacy classes & character table

220 conjugacy classes — view the full character table.

Relationships

maximal subgroup of	C₂×#72232293
maximal normal subgroup of	C₂×#72232293
maximal quotient of	C₂×#72323387

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

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

C2×#7680920 #72331468