Finite Group Databasebeta
Cayley diagram

C2×#2158 #33407

order256
nilpotency class4
isoclinismisoclinic class of D16
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#2158

Subgroups

subgroupG/H
centerC22×C4D8
commutatorC8C23×C4
Frattini, cosocleC2×C8C24
socleC23C2×D8
prime radicalC24D8
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C4 ◁ C23×C8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

347 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 38
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 38 points:

(1,2);(3,4,5,6)(7,8)(9,18)(10,15)(11,25)(12,27)(13,17)(14,21)(16,19)(20,31)(22,37)(23,33)(24,30)(26,38)(28,35)(29,36)(32,34);(7,9,19,34,12,22,26,36,13,23,24,35,10,20,11,21)(8,14,25,31,15,28,30,33,17,29,38,37,27,32,16,18);(7,10,13,12)(8,15,17,27)(9,20,23,22)(11,24,26,19)(14,28,29,32)(16,25,30,38)(18,31,33,37)(21,35,36,34)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#147093, #147094, #147095, …
maximal normal subgroup of#147093, #147094, #147095, …
maximal quotient ofC2×#12008, C2×#12024, #483403, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26395);