Finite Group Databasebeta
Cayley diagram

C2×#1773 #20443

order256
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1773

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
socleC23C4×D4
prime radicalC24#41
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

531 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);(8,12,14,17)(9,15)(13,20,21,19)(16,22);(3,4,5,6)(7,8)(9,13)(10,17)(11,14)(12,18)(15,21)(16,20)(19,22);(7,9,10,16,11,15,18,22)(8,13,17,20,14,21,12,19)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146344, #146345, #146346, …
maximal normal subgroup of#146344, #146345, #146346, …
maximal quotient ofC2×#8268, C2×#8270, C2×#8269, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13431);