Finite Group Databasebeta
Cayley diagram

C2×#2519 #34758

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2519

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC25C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1233 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

(1,2);(4,5)(8,11)(12,14)(15,16,19,18)(17,21,22,20);(3,4,6,5)(17,22)(20,21);(3,4,6,5)(7,8)(9,12)(10,11)(13,14)(15,17)(16,20)(18,21)(19,22);(3,5,6,4)(7,9,10,13)(8,12,11,14)(15,18,19,16)(17,21,22,20)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#219769, #219789, #223291, …
maximal normal subgroup of#219769, #219789, #223291, …
maximal quotient ofC2×#13889, C2×#13914, C2×#14010, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27746);