Finite Group Databasebeta
Cayley diagram

C2×#3317 #61138

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

Aliases

direct productC2×#3317

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#550C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×D4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1089 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)(11,12,16,19)(13,20,21,26)(14,18,15,23)(17,24,25,22);(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#220330, #6384191, #6384208, …
maximal normal subgroup of#220330, #6384191, #6384208, …
maximal quotient ofC2×#22422, C2×#22496, C2×#22565, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54126);