Finite Group Databasebeta
Cayley diagram

#10255

order256
nilpotency class3
isoclinismisoclinic class of #10254
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22#392
commutator, Frattini, cosocleC2×C42C23
prime radical#3245C2
LCSG ▷ C2×C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C2×C42 ▷ C22 ▷ C1

291 conjugacy classes of subgroups; only the 61 normal subgroups are shown.

normal subgroups only

This group has 291 conjugacy classes of subgroups — too many to draw. Only its 61 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 — 3 generators on 24 points:

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

Polycyclic presentation:

2^8|b^2=g,d^2=g,e^2=h,f^2=g,b^a=bd,c^a=ce,d^a=dg,e^a=eh,c^b=cf,d^b=dg,f^b=fg,e^c=eh,f^c=fg

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#93783, #93830, #123057, …
maximal normal subgroup of#93783, #93830, #123057, …
maximal quotient of#102431, #102432, #102434, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 3243);