Finite Group Databasebeta
Cayley diagram

#17875

order256
nilpotency class3
isoclinismisoclinic class of #3008
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×AGL(1,ℤ/8)C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ #431 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

349 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 24 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#226951, #226953, #226955, …
maximal normal subgroup of#226951, #226953, #226955, …
maximal quotient of#182438, #182454, #183442, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10863);