Finite Group Databasebeta
Cayley diagram

#16981

order256
nilpotency class2
isoclinismisoclinic class of #16249
automorphismAut(G) order 131072
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C22×C4

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

595 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:

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

Polycyclic presentation:

2^8|a^2=e,b^2=egh,c^2=g,d^2=e,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 of#296398, #296401, #296429, …
maximal normal subgroup of#296398, #296401, #296429, …
maximal quotient of#155755, #155849, #155851, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 9969);