Finite Group Databasebeta
Cayley diagram

C2×#1946 #21162

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1946

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C4×D4
prime radicalC24#41
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

467 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)(7,8,11,16,12,17,21,15)(9,13,10,19,18,14,20,22);(4,6)(7,9,11,10,12,18,21,20)(8,13,16,19,17,14,15,22);(7,10,11,18,12,20,21,9)(8,14,15,19,17,13,16,22)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#7125, #147200, #147201, …
maximal normal subgroup ofC2×#7125, #147200, #147201, …
maximal quotient ofC2×#9595, C2×#9596, #203501, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14150);