Finite Group Databasebeta
Cayley diagram

#21676

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C8C23
commutator, socle, prime radicalC23C23×C4
Frattini, cosocleC22×C4C24
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

329 conjugacy classes of subgroups; only the 179 normal subgroups are shown.

normal subgroups only

This group has 329 conjugacy classes of subgroups — too many to draw. Only its 179 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) = 32
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 32 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#124905, #125036, #141921, …
maximal normal subgroup of#124905, #125036, #141921, …
maximal quotient of#354521, #354694, #355003, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14664);