Finite Group Databasebeta
Cayley diagram

#20347

order256
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphismAut(G) order 524288
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C26×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
socleC23C22×D4
prime radicalC25D4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1135 conjugacy classes of subgroups; only the 567 normal subgroups are shown.

normal subgroups only

This group has 1135 conjugacy classes of subgroups — too many to draw. Only its 567 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) = 24
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 24 points:

(1,2)(3,4)(5,6,7,8)(9,10)(11,19)(12,16)(13,17)(14,18)(15,21)(20,24)(22,23);(2,4)(9,11,13,22,14,20,12,21)(10,15,16,24,18,23,17,19);(11,20)(15,23)(19,24)(21,22);(9,12,14,13)(10,16,18,17)(11,21,20,22)(15,24,23,19)

Polycyclic presentation:

2^8|a^2=f,b^2=g,d^2=h,e^2=h,g^2=h,b^a=be,e^a=eh,g^a=gh,c^b=ch

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#123457, #123459, #123467, …
maximal normal subgroup of#123457, #123459, #123467, …
maximal quotient of#180911, #180917, #180924, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13335);