Finite Group Databasebeta
Cayley diagram

C2×#1710 #19598

order256
nilpotency class3
isoclinismisoclinic class of #1705
automorphismAut(G) order 524288
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C23×C4

Aliases

direct productC2×#1710

Subgroups

subgroupG/H
center, socle, prime radicalC23#127
commutator, Frattini, cosocleC42C24
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

375 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 34 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#7093, #122860, #122866, …
maximal normal subgroup ofC2×#7093, #122860, #122866, …
maximal quotient ofC2×#8816, C2×#9821, C2×#9823, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12586);