Finite Group Databasebeta
Cayley diagram

#20430

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 65536
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 radicalC24C22×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

569 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)(5,6,8,7);(2,4)(9,10,12,15,13,16,19,22)(11,14,18,21,17,20,23,24);(5,7,8,6)(9,11)(10,14)(12,18)(13,17)(15,21)(16,20)(19,23)(22,24);(11,17)(14,20)(18,23)(21,24)

Polycyclic presentation:

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#100524, #100528, #100532, …
maximal normal subgroup of#100524, #100528, #100532, …
maximal quotient of#183330, #183331, #183332, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13418);