Finite Group Databasebeta
Cayley diagram

#13199

order256
nilpotency class3
isoclinismisoclinic class of #2031
automorphismAut(G) = C4×#511819 (order 2048) · Inn(G) = #124 · Out(G) = C2×C4×D4
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC8#124
commutatorC22×C4C22×C4
Frattini, cosocleC22×C8C23
socleC2#1955
prime radical#575C4
LCSG ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C8 ◁ C22×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

203 conjugacy classes of subgroups; only the 69 normal subgroups are shown.

normal subgroups only

This group has 203 conjugacy classes of subgroups — too many to draw. Only its 69 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) = 64
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 3 generators on 64 points:

(1,2,6,12,7,13,28,42,8,14,29,43,5,11,16,31)(3,15,20,44,18,33,45,41,19,39,27,55,25,9,30,34)(4,10,23,37,22,36,51,60,24,38,54,63,26,40,46,57)(17,47,50,62,21,32,52,59,49,35,56,61,48,58,53,64);(1,3,16,45,5,25,29,20,8,19,28,30,7,18,6,27)(2,9,31,44,11,39,43,34,14,33,42,55,13,15,12,41)(4,21,51,50,26,17,23,53,24,48,46,56,22,49,54,52)(10,35,60,59,40,32,37,62,38,47,57,64,36,58,63,61);(1,4)(2,10)(3,17,19,49)(5,26)(6,23)(7,22)(8,24)(9,32,33,58)(11,40)(12,37)(13,36)(14,38)(15,35,39,47)(16,46)(18,21,25,48)(20,50,27,56)(28,51)(29,54)(30,53,45,52)(31,57)(34,59,41,64)(42,60)(43,63)(44,61,55,62)

Polycyclic presentation:

2^8|a^2=f,b^2=df,c^2=e,d^2=h,f^2=g,g^2=h,b^a=bd,c^a=ce,c^b=cg,d^b=dh,e^b=eh,f^b=fh,d^c=dh

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#143173, #143174, #143175, …
maximal normal subgroup of#143173, #143174, #143175, …
maximal quotient of#140562, #140566, #140584, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 6187);