Finite Group Databasebeta
Cayley diagram

#17894

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphismAut(G) = C24×D4×#120 (order 4096) · Inn(G) = C22×D4 · Out(G) = C24×D4
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C2×C4×D4
prime radicalC2×#41C2×C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ #431 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

318 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:

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

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=f,e^2=g,f^2=h,b^a=be,c^a=ch,e^a=eg,c^b=ch,e^b=eg,d^c=dg

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#226982, #226984, #226986, …
maximal normal subgroup of#226982, #226984, #226986, …
maximal quotient of#182423, #182425, #183450, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10882);