Finite Group Databasebeta
Cayley diagram

#16138

order256
nilpotency class2
isoclinismisoclinic class of #15257
automorphismAut(G) order 65536
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C42

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutator, Frattini, socle, prime radical, cosocleC24C24
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C24 ▷ C1

495 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 32
transitive degreeμt(G) = 256

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

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

Polycyclic presentation:

2^8|a^2=efg,b^2=eh,c^2=e,d^2=f,b^a=be,c^a=cf,d^a=dh,c^b=cg,d^b=de

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#16138, #610237, #610272, …
maximal normal subgroup ofC2×#16138, #610237, #610272, …
maximal quotient of#154828, #154829, #154835, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 9126);