Finite Group Databasebeta

C2×#648504 #72342292

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C26 · Schur multiplier (H2) = C212×C4

Aliases

direct productC2×#648504

Subgroups

subgroupG/H
center, socleC25C25
commutator, Frattini, cosocleC24C26
prime radicalC2×#14716C2
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C24 ▷ C1

40647 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 6 generators on 26 points:

(4,5)(7,8)(9,10)(11,12,15,14)(13,16,17,18)(19,20,23,24)(21,25,26,22);(3,4,6,5)(8,10)(11,13,15,17)(12,16,14,18);(1,2)(3,5,6,4)(7,8)(9,10)(11,14,15,12)(13,16,17,18)(19,21,23,26)(20,22,24,25);(3,4,6,5)(7,8)(9,10)(12,14)(13,17)(19,22)(20,21)(23,25)(24,26);(3,5,6,4)(11,13)(12,16)(14,18)(15,17);(11,12)(13,16)(14,15)(17,18)(19,20)(21,25)(22,26)(23,24)

Conjugacy classes & character table

208 conjugacy classes — view the full character table.

GAP

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

gap> G := Group((4,5)(7,8)(9,10)(11,12,15,14)(13,16,17,18)(19,20,23,24)(21,25,26,22), (3,4,6,5)(8,10)(11,13,15,17)(12,16,14,18), (1,2)(3,5,6,4)(7,8)(9,10)(11,14,15,12)(13,16,17,18)(19,21,23,26)(20,22,24,25), (3,4,6,5)(7,8)(9,10)(12,14)(13,17)(19,22)(20,21)(23,25)(24,26), (3,5,6,4)(11,13)(12,16)(14,18)(15,17), (11,12)(13,16)(14,15)(17,18)(19,20)(21,25)(22,26)(23,24));