Finite Group Databasebeta
Cayley diagram

#20495

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 32768
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutatorC22C22×C42
socleC23C23×C4
prime radicalC22×D4C2×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

565 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 128

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#128567, #128569, #128580, …
maximal normal subgroup of#128567, #128569, #128580, …
maximal quotient of#183842, #183844, #183850, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13483);