Finite Group Databasebeta
Cayley diagram

#20455

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 131072
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 radicalC24C2×D4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

563 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)(9,10,12,17,13,16,20,14)(11,15,19,22,18,23,24,21);(5,6,7,8)(10,14)(12,20)(15,21)(16,17)(19,24)(22,23);(1,3,4,2)(9,11)(10,15)(12,19)(13,18)(14,21)(16,23)(17,22)(20,24);(10,16)(11,18)(14,17)(19,24)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146903, #147056, #147217, …
maximal normal subgroup of#146903, #147056, #147217, …
maximal quotient of#183576, #183578, #183580, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13443);