Finite Group Databasebeta
Cayley diagram

#20508

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 196608
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
prime radicalC22×D8C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

603 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of#20508⋊C3
maximal subgroup of#138734, #138736, #221351, …
maximal normal subgroup of#138734, #138736, #221351, …
maximal quotient of#183882, #183906, #183918, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13496);