Finite Group Databasebeta
Cayley diagram

#19955

order256
nilpotency class3
isoclinismisoclinic class of #19883
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutator, Frattini, cosocleC42C24
prime radical#3283C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

318 conjugacy classes of subgroups; only the 103 normal subgroups are shown.

normal subgroups only

This group has 318 conjugacy classes of subgroups — too many to draw. Only its 103 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 128

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#491789, #491791, #491805, …
maximal normal subgroup of#491789, #491791, #491805, …
maximal quotient of#220793, #220954, #220980, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12943);