Finite Group Databasebeta
Cayley diagram

#20503

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, socleC23C22×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
prime radicalC22×D8C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

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

normal subgroups only

This group has 603 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) = 128

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

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

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=g,d^2=f,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#134390, #138728, #138730, …
maximal normal subgroup of#134390, #138728, #138730, …
maximal quotient of#183874, #183877, #183895, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13491);