Finite Group Databasebeta
Cayley diagram

#19439

order256
nilpotency class3
isoclinismisoclinic class of #19420
automorphismAut(G) order 16384
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#121
commutator, Frattini, cosocleC42C24
prime radical#532C22
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

312 conjugacy classes of subgroups; only the 113 normal subgroups are shown.

normal subgroups only

This group has 312 conjugacy classes of subgroups — too many to draw. Only its 113 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) = 128

A minimal faithful permutation representation — 4 generators on 24 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

37 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#267910, #267912, #267942, …
maximal normal subgroup of#267910, #267912, #267942, …
maximal quotient of#189144, #197871, #197950, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12427);