Finite Group Databasebeta
Cayley diagram

C2×#2168 #33430

order256
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C25

Aliases

direct productC2×#2168

Subgroups

subgroupG/H
centerC22×C8C23
commutatorC22C23×C8
Frattini, cosocleC2×C8C24
socleC23C22×C8
prime radicalC22×D4C8
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

377 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)(5,6)(7,8,10,14,11,9,16,17,12,15,19,22,20,18,13,21);(4,6);(7,9,10,17,11,15,16,22,12,18,19,21,20,8,13,14)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#128445, #128465, #128513, …
maximal normal subgroup of#128445, #128465, #128513, …
maximal quotient ofC2×#12038, C2×#12050, C2×#12049, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26418);