Finite Group Databasebeta
Cayley diagram

#18687

order256
nilpotency class3
isoclinismisoclinic class of #18682
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

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

505 conjugacy classes of subgroups; only the 115 normal subgroups are shown.

normal subgroups only

This group has 505 conjugacy classes of subgroups — too many to draw. Only its 115 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#249721, #249722, #249731, …
maximal normal subgroup of#249721, #249722, #249731, …
maximal quotient of#167766, #167801, #167842, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11675);