Finite Group Databasebeta
Cayley diagram

C2×#1907 #21001

order256
nilpotency class3
isoclinismisoclinic class of #471
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1907

Subgroups

subgroupG/H
center, socleC23#121
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×AGL(1,ℤ/8)C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

913 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

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

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1907, #354240, #356676, …
maximal normal subgroup ofC4×#1907, #354240, #356676, …
maximal quotient ofC2×#9095, C2×#9097, #196183, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13989);