Finite Group Databasebeta
Cayley diagram

C2×#3331 #61151

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

Aliases

direct productC2×#3331

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#547C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×D4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1079 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)(11,12,16,20)(13,21,22,26)(14,19,15,18)(17,24,25,23);(3,5)(4,7)(6,10)(8,9)(13,22)(17,25)(21,26)(23,24);(11,13)(12,17)(14,23)(15,24)(16,22)(18,21)(19,26)(20,25);(5,10)(7,9)(11,14,16,15)(12,18,20,19)(13,23,22,24)(17,21,25,26)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220403, #220775, #220847, …
maximal normal subgroup of#220403, #220775, #220847, …
maximal quotient ofC2×#22431, C2×#22502, C2×#22578, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54139);