Finite Group Databasebeta
Cayley diagram

C2×#2290 #34017

order256
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28×C4

Aliases

direct productC2×#2290

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC22C24×C4
Frattini, cosocleC23C25
socleC24C24
prime radicalC23×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C23 ▷ C1

2067 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)(5,6)(7,8,10,9)(11,12)(13,16)(14,15)(17,18);(7,9,10,8)(12,15)(16,18);(4,6);(11,13,14,17)(12,16,15,18)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105580, #105582, #106107, …
maximal normal subgroup of#105580, #105582, #106107, …
maximal quotient ofC2×#13753, C2×#13759, C2×#13761, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27005);