Finite Group Databasebeta
Cayley diagram

#20505

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socle, prime radicalC23C22×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

527 conjugacy classes of subgroups; only the 299 normal subgroups are shown.

normal subgroups only

This group has 527 conjugacy classes of subgroups — too many to draw. Only its 299 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) = 256

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#134391, #138729, #138731, …
maximal normal subgroup of#134391, #138729, #138731, …
maximal quotient of#183876, #183879, #183897, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13493);