Finite Group Databasebeta
Cayley diagram

C2×#3374 #61309

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

Aliases

direct productC2×#3374

Subgroups

subgroupG/H
center, socle, prime radicalC23C22×D4
commutator, Frattini, cosocleC2×C4C25
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×Q8 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

889 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

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

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220419, #220791, #220863, …
maximal normal subgroup of#220419, #220791, #220863, …
maximal quotient ofC2×#22524, C2×#22547, C2×#22743, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54297);