Finite Group Databasebeta
Cayley diagram

#18680

order256
nilpotency class3
isoclinismisoclinic class of #18618
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

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

normal subgroups only

This group has 500 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#250086, #250102, #250110, …
maximal normal subgroup of#250086, #250102, #250110, …
maximal quotient of#166630, #166632, #166638, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11668);