Finite Group Databasebeta
Cayley diagram

C2×#1952 #21180

order256
nilpotency class3
isoclinismisoclinic class of #471
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1952

Subgroups

subgroupG/H
center, socleC23#121
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC24#41
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

459 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 22 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#147186, #147191, #147217, …
maximal normal subgroup of#147186, #147191, #147217, …
maximal quotient ofC2×#9608, C2×#9610, #203717, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14168);