Finite Group Databasebeta
Cayley diagram

#8395

order256
nilpotency class3
isoclinismisoclinic class of #8359
automorphismAut(G) order 16384
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22#379
commutatorC22×C4C22×C4
Frattini, cosocleC2×C42C23
prime radicalC22×D4D4
LCSG ▷ C22×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C2×C42 ▷ C22 ▷ C1

391 conjugacy classes of subgroups; only the 89 normal subgroups are shown.

normal subgroups only

This group has 391 conjugacy classes of subgroups — too many to draw. Only its 89 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) = 64

A minimal faithful permutation representation — 3 generators on 24 points:

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

Polycyclic presentation:

2^8|a^2=f,b^2=gh,d^2=h,f^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eg,d^b=dh,f^b=fgh,f^c=fg

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#130857, #130858, #130860, …
maximal normal subgroup of#130857, #130858, #130860, …
maximal quotient of#97409, #97426, #97431, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 1383);