Finite Group Databasebeta
Cayley diagram

#20518

order256
nilpotency class2
isoclinismisoclinic class of #534
automorphismAut(G) order 32768
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutatorC22C22×C42
socle, prime radicalC23C23×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

419 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 28 points:

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

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=eg,d^2=ef,f^2=h,b^a=be,d^a=dh,c^b=ch

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#101472, #101474, #101476, …
maximal normal subgroup of#101472, #101474, #101476, …
maximal quotient of#184375, #184376, #184377, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13506);