Finite Group Databasebeta
Cayley diagram

C2×#3309 #61137

order256
nilpotency class3
isoclinismisoclinic class of #3264
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3309

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×D4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1121 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 26 points:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220331, #6384195, #6384212, …
maximal normal subgroup of#220331, #6384195, #6384212, …
maximal quotient ofC2×#22422, C2×#22498, C2×#22569, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54125);