Finite Group Databasebeta
Cayley diagram

#18958

order256
nilpotency class3
isoclinismisoclinic class of #18930
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
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

475 conjugacy classes of subgroups; only the 113 normal subgroups are shown.

normal subgroups only

This group has 475 conjugacy classes of subgroups — too many to draw. Only its 113 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) = 64

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

37 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#347035, #347036, #347037, …
maximal normal subgroup of#347035, #347036, #347037, …
maximal quotient of#170409, #170469, #170505, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11946);