Finite Group Databasebeta
Cayley diagram

#23556

order256
nilpotency class3
isoclinismisoclinic class of #23387
automorphismAut(G) order 65536
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC22×C4C24
prime radicalC24C2×D4
LCSG ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

555 conjugacy classes of subgroups; only the 191 normal subgroups are shown.

normal subgroups only

This group has 555 conjugacy classes of subgroups — too many to draw. Only its 191 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) = 28
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 28 points:

(5,6,9,11)(7,12,8,10)(13,14,17,21)(15,18,22,26)(16,19,24,20)(23,25,28,27);(1,2)(3,4)(5,7,9,8)(6,10,11,12)(13,15)(14,18)(16,23)(17,22)(19,25)(20,27)(21,26)(24,28);(2,4)(5,8,9,7)(6,10,11,12)(14,19)(16,24)(18,25)(20,21)(23,28)(26,27);(15,22)(18,26)(23,28)(25,27)

Polycyclic presentation:

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#394896, #395339, #398023, …
maximal normal subgroup of#394896, #395339, #398023, …
maximal quotient of#241200, #241204, #241208, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 16544);