Finite Group Databasebeta
Cayley diagram

#19905

order256
nilpotency class3
isoclinismisoclinic class of #19883
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutator, Frattini, cosocleC42C24
prime radical#3341C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

302 conjugacy classes of subgroups; only the 103 normal subgroups are shown.

normal subgroups only

This group has 302 conjugacy classes of subgroups — too many to draw. Only its 103 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#491849, #491851, #491865, …
maximal normal subgroup of#491849, #491851, #491865, …
maximal quotient of#220776, #220966, #220974, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12893);