Finite Group Databasebeta
Cayley diagram

C2×#2349 #34111

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2349

Subgroups

subgroupG/H
center, socleC24C24
commutatorC22C24×C4
Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

2099 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);(4,6)(7,8,9,10)(11,12)(13,17)(14,15)(16,18);(12,15)(16,17);(3,4,5,6)(11,13)(12,16)(14,18)(15,17);(11,12)(13,16)(14,15)(17,18)

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97589, #105980, #106694, …
maximal normal subgroup of#97589, #105980, #106694, …
maximal quotient ofC2×#13802, C2×#13804, C2×D4×#95, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27099);