Finite Group Databasebeta
Cayley diagram

C2×#1917 #21019

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1917

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socle, prime radicalC24C22×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

535 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 256

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

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1917, #354488, #354490, …
maximal normal subgroup ofC4×#1917, #354488, #354490, …
maximal quotient ofC2×#9537, C2×#9539, C2×#9538, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14007);