Finite Group Databasebeta
Cayley diagram

#19750

order256
nilpotency class3
isoclinismisoclinic class of #19745
automorphismAut(G) order 32768
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C23×C8

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#127
commutator, Frattini, cosocleC42C24
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

407 conjugacy classes of subgroups; only the 119 normal subgroups are shown.

normal subgroups only

This group has 407 conjugacy classes of subgroups — too many to draw. Only its 119 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)(3,7)(6,8)(9,10,13,15)(11,17,18,24)(12,20,21,16)(14,22,23,19);(9,11,12,19,13,18,21,22)(10,14,16,17,15,23,20,24);(1,2,3,5,4,6,7,8)(10,15)(14,23)(16,20)(17,24);(2,6)(5,8)(11,18)(14,23)(17,24)(19,22)

Polycyclic presentation:

2^8|a^2=g,b^2=e,c^2=fg,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,d^b=dg,d^c=dh

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#139426, #153541, #153546, …
maximal normal subgroup of#139426, #153541, #153546, …
maximal quotient of#191533, #206315, #206318, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12738);