Finite Group Databasebeta
Cayley diagram

#19900

order256
nilpotency class3
isoclinismisoclinic class of #19883
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutator, Frattini, cosocleC42C24
prime radicalD4×D8C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

355 conjugacy classes of subgroups; only the 103 normal subgroups are shown.

normal subgroups only

This group has 355 conjugacy classes of subgroups — too many to draw. Only its 103 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 — 4 generators on 24 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#491780, #491782, #491796, …
maximal normal subgroup of#491780, #491782, #491796, …
maximal quotient of#220773, #220952, #220980, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12888);