Finite Group Databasebeta
Cayley diagram

#18747

order256
nilpotency class3
isoclinismisoclinic class of #18746
automorphismAut(G) order 16384
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#120
commutator, Frattini, cosocleC42C24
prime radicalC2×D42C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

817 conjugacy classes of subgroups; only the 133 normal subgroups are shown.

normal subgroups only

This group has 817 conjugacy classes of subgroups — too many to draw. Only its 133 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) = 16
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 16 points:

(1,2,4,7)(3,5,8,6)(9,10,13,16)(11,14,12,15);(2,5)(3,8)(6,7)(10,14)(11,12)(15,16);(10,15)(11,12)(14,16);(10,16)(14,15)

Polycyclic presentation:

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

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#245712, #245713, #245724, …
maximal normal subgroup of#245712, #245713, #245724, …
maximal quotient of#165911, #165915, #165920, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11735);