Finite Group Databasebeta
Cayley diagram

#16553

order256
nilpotency class2
isoclinismisoclinic class of #16249
automorphismAut(G) order 65536
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

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

643 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 256

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#16553, #611113, #611114, …
maximal normal subgroup ofC2×#16553, #611113, #611114, …
maximal quotient of#155663, #155731, #155765, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 9541);