Finite Group Databasebeta

C2×#2139985 #72297315

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

Aliases

direct productC2×#2139985

Subgroups

subgroupG/H
center, socleC25C25
commutator, Frattini, cosocleC24C26
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C24 ▷ C1

42873 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)(8,10)(12,15)(16,18);(3,4)(5,6)(7,8)(9,10)(12,15)(13,17);(4,5)(13,17)(16,18)(20,23)(21,25);(3,5,6,4)(11,12,14,15)(13,16,17,18)(19,20)(21,26)(22,23)(24,25);(11,13)(12,16)(14,17)(15,18)(19,21)(20,24)(22,25)(23,26);(1,2)

Conjugacy classes & character table

160 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#72277898, C2×#72232107, C2×#72232179, …
maximal normal subgroup ofC2×#72277898, C2×#72232107, C2×#72232179, …
maximal quotient ofC2×#72278082

GAP

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

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