Finite Group Databasebeta
Cayley diagram

#18816

order256
nilpotency class3
isoclinismisoclinic class of #18810
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
prime radical#3115C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

459 conjugacy classes of subgroups; only the 117 normal subgroups are shown.

normal subgroups only

This group has 459 conjugacy classes of subgroups — too many to draw. Only its 117 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) = 32
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 32 points:

(1,2)(3,10)(4,8)(5,14)(6,9)(7,12)(11,15)(13,16)(17,18)(19,25)(20,28)(21,23)(22,27)(24,29)(26,32)(30,31);(1,3,6,13)(2,7,9,15)(4,12,5,11)(8,16,14,10)(20,29)(24,28)(25,32)(27,30);(17,19)(18,22)(20,30)(21,26)(23,31)(24,32)(25,28)(27,29);(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,10,15,16)(18,23)(22,31)(24,28)(25,32)

Polycyclic presentation:

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

37 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#249819, #249822, #249835, …
maximal normal subgroup of#249819, #249822, #249835, …
maximal quotient of#168915, #168972, #169039, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11804);