Finite Group Databasebeta
Cayley diagram

C2×#1425 #13635

order256
nilpotency class5
isoclinismisoclinic class of D32
automorphismAut(G) order 8192
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C22

Aliases

direct productC2×#1425

Subgroups

subgroupG/H
centerC2×C4D16
commutatorC16C22×C4
Frattini, cosocleC2×C16C23
socleC22#366
prime radicalC23Q32
LCSG ▷ C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C4 ◁ C22×C8 ◁ C22×C16 ◁ G
LECSG ▷ C2×C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1

91 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 66
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 3 generators on 66 points:

(1,2);(3,4,7,13,10,15,9,31)(5,16,19,41,22,43,21,53)(6,23,25,54,27,56,26,57)(8,29,28,39,30,58,24,14)(11,32,33,49,35,48,59,18)(12,36,37,46,38,45,55,17)(20,51,50,63,52,66,47,42)(34,44,40,60,61,65,62,64);(3,5,17,44,8,20,25,32,7,19,36,60,28,50,27,49,10,22,46,65,30,52,26,48,9,21,45,64,24,47,6,18)(4,11,23,42,14,34,55,53,31,59,57,66,58,62,38,43,15,35,56,63,39,61,37,41,13,33,54,51,29,40,12,16)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#94762, #94763, #94764, …
maximal normal subgroup of#94762, #94763, #94764, …
maximal quotient ofC2×#7460, C2×#7461, #151032, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 6623);