Finite Group Databasebeta
Cayley diagram

#20384

order256
nilpotency class2
isoclinismisoclinic class of #534
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutatorC22C22×C42
socleC23C23×C4
prime radicalC22×#41C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

783 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)(9,10,12,16,13,15,19,22)(11,14,18,21,17,20,23,24);(2,4)(5,6,7,8)(11,17)(14,20)(18,23)(21,24);(9,11,12,18,13,17,19,23)(10,14,16,21,15,20,22,24);(10,15)(14,20)(16,22)(21,24)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#126958, #126960, #128315, …
maximal normal subgroup of#126958, #126960, #128315, …
maximal quotient of#181886, #181893, #181895, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13372);