Finite Group Databasebeta
Cayley diagram

#20173

order256
nilpotency class3
isoclinismisoclinic class of #20158
automorphismAut(G) order 4096
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutator, Frattini, cosocleC42C24
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

331 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:

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

Polycyclic presentation:

2^8|a^2=g,b^2=g,c^2=g,d^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,c^b=cgh,d^b=de,e^b=eg,f^c=fh,e^d=eg

Conjugacy classes & character table

34 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#20173, #6359524, #6359652, …
maximal normal subgroup ofC2×#20173, #6359524, #6359652, …
maximal quotient of#220886, #220998, #222421, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13161);