Finite Group Databasebeta
Cayley diagram

#20688

order256
nilpotency class3
isoclinismisoclinic class of #1462
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C2×C22⋊C4
commutatorC23C23×C4
Frattini, cosocleC24C24
socleC22C22×C22⋊C4
prime radicalC25C23
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C24×C4 ◁ G
LECSG ▷ C24 ▷ C2 ▷ C1

755 conjugacy classes of subgroups; only the 227 normal subgroups are shown.

normal subgroups only

This group has 755 conjugacy classes of subgroups — too many to draw. Only its 227 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 24 points:

(1,2)(3,6)(4,5)(7,8)(9,10)(11,17,19,14)(12,15)(13,16)(18,23,24,21)(20,22);(2,5)(6,8);(1,3,4,7)(2,6,5,8)(9,11)(10,14)(12,18)(13,19)(15,21)(16,17)(20,24)(22,23);(9,12,13,20)(10,15,16,22)(11,18,19,24)(14,21,17,23)

Polycyclic presentation:

2^8|a^2=g,c^2=e,d^2=h,b^a=be,c^a=cf,f^a=fh,g^c=gh

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105823, #105833, #106147, …
maximal normal subgroup of#105823, #105833, #106147, …
maximal quotient of#189684, #189687, #189690, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13676);