Finite Group Databasebeta
Cayley diagram

#25490

order256
nilpotency class3
isoclinismisoclinic class of #25140
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, cosocleC22×C4C24
prime radicalC22×D4C23
LCSG ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

332 conjugacy classes of subgroups; only the 125 normal subgroups are shown.

normal subgroups only

This group has 332 conjugacy classes of subgroups — too many to draw. Only its 125 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#285184, #285186, #285199, …
maximal normal subgroup of#285184, #285186, #285199, …
maximal quotient of#290076, #290081, #290088, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 18478);