Finite Group Databasebeta
Cayley diagram

#25442

order256
nilpotency class3
isoclinismisoclinic class of #25440
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutator, Frattini, cosocleC22×C4C24
prime radical#3061C2
LCSG ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

445 conjugacy classes of subgroups; only the 123 normal subgroups are shown.

normal subgroups only

This group has 445 conjugacy classes of subgroups — too many to draw. Only its 123 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) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 36 points:

(5,6,9,12,11,16,10,15)(7,17,18,13,21,28,20,29)(8,22,23,14,25,26,24,30)(19,27,32,35,34,36,33,31);(1,2)(3,4)(6,12,16,15)(7,18,21,20)(14,26,30,22)(19,32,34,33);(2,4)(5,7)(6,13)(8,19)(9,20)(10,18)(11,21)(12,17)(14,27)(15,28)(16,29)(22,35)(23,33)(24,32)(25,34)(26,31)(30,36);(5,8,10,24,11,25,9,23)(6,14,12,26,16,30,15,22)(7,19,18,32,21,34,20,33)(13,27,17,31,29,36,28,35)

Polycyclic presentation:

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

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#502195, #502196, #502199, …
maximal normal subgroup of#502195, #502196, #502199, …
maximal quotient of#288573, #288576, #288579, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 18430);