Finite Group Databasebeta
Cayley diagram

C2×#2970 #60202

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 131072
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2970

Subgroups

subgroupG/H
centerC22×C4C24
commutatorC22C24×C4
Frattini, cosocleC2×C4C25
socleC23C23×C4
prime radicalC22×#41C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1127 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 18 points:

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105696, #105701, #105984, …
maximal normal subgroup of#105696, #105701, #105984, …
maximal quotient ofC2×#20479, C2×#20480, C2×#20491, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53190);