Finite Group Databasebeta
Cayley diagram

C2×#2561 #34841

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2561

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC26C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

2083 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111589, #112585, #115176, …
maximal normal subgroup of#111589, #112585, #115176, …
maximal quotient ofC2×#13903, C2×#13966, C2×#13971, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27829);