Finite Group Databasebeta
Cayley diagram

C2×#1740 #20353

order256
nilpotency class3
isoclinismisoclinic class of #99
automorphismAut(G) order 262144
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C26×C4

Aliases

direct productC2×#1740

Subgroups

subgroupG/H
centerC22×C4C22⋊C4
commutatorC22C22×C42
Frattini, cosocleC24C24
socleC23C2×C22⋊C4
prime radicalC25C23
LCSG ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C24×C4 ◁ G
LECSG ▷ C24 ▷ C2 ▷ C1

1175 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);(7,8)(9,15,17,12)(10,13)(11,14)(16,21,22,19)(18,20);(3,4,5,6)(7,9)(8,12)(10,16)(11,17)(13,19)(14,15)(18,22)(20,21);(7,10,11,18)(8,13,14,20)(9,16,17,22)(12,19,15,21)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#123441, #123442, #123445, …
maximal normal subgroup of#123441, #123442, #123445, …
maximal quotient ofC2×#7906, C2×#7908, #180998, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13341);