Finite Group Databasebeta
Cayley diagram

#19494

order256
nilpotency class3
isoclinismisoclinic class of #19456
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, cosocleC42C24
prime radical#3106C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

312 conjugacy classes of subgroups; only the 109 normal subgroups are shown.

normal subgroups only

This group has 312 conjugacy classes of subgroups — too many to draw. Only its 109 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)(7,11)(12,15)(13,16)(17,18)(19,28)(20,24)(21,26)(22,27)(23,31)(25,30)(29,32);(1,3,5,11,6,12,4,13)(2,7,8,10,9,16,14,15)(17,19,22,20)(18,24,27,28)(21,30,23,29)(25,26,32,31);(17,20,22,19)(18,25,27,32)(21,30,23,29)(24,26,28,31);(1,4,6,5)(2,8,9,14)(3,11,12,13)(7,15,16,10)(17,21,22,23)(18,26,27,31)(19,29,20,30)(24,25,28,32)

Polycyclic presentation:

2^8|b^2=e,c^2=h,d^2=gh,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,d^b=dgh,f^c=fh

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#268645, #268648, #268651, …
maximal normal subgroup of#268645, #268648, #268651, …
maximal quotient of#189160, #197898, #197976, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12482);