Finite Group Databasebeta
Cayley diagram

#19409

order256
nilpotency class3
isoclinismisoclinic class of #19384
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#121
commutator, Frattini, cosocleC42C24
prime radical#3038C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

352 conjugacy classes of subgroups; only the 121 normal subgroups are shown.

normal subgroups only

This group has 352 conjugacy classes of subgroups — too many to draw. Only its 121 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

49 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#271939, #271940, #271941, …
maximal normal subgroup of#271939, #271940, #271941, …
maximal quotient of#189138, #197864, #197940, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12397);