Finite Group Databasebeta
Cayley diagram

C2×#2943 #60155

order256
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphismAut(G) order 262144
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2943

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC4C24×C4
Frattini, cosocleC2×C4C25
socleC23C22×D4
prime radicalC22×#135C2
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1427 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146786, #146788, #146802, …
maximal normal subgroup of#146786, #146788, #146802, …
maximal quotient ofC2×#17849, C2×#17868, C2×#17890, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53143);