Finite Group Databasebeta
Cayley diagram

C2×#1882 #20940

order256
nilpotency class3
isoclinismisoclinic class of #453
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1882

Subgroups

subgroupG/H
center, socleC23#120
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

901 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);(4,6)(7,8,11,15,12,16,10,14)(9,17,19,13,20,21,18,22);(3,4,5,6)(7,9)(8,13)(10,19)(11,18)(12,20)(14,21)(15,17)(16,22);(7,9)(8,13)(10,18)(11,19)(12,20)(14,17)(15,21)(16,22)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1882, #354244, #356677, …
maximal normal subgroup ofC4×#1882, #354244, #356677, …
maximal quotient ofC2×#8953, C2×#8955, #193739, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13928);