Finite Group Databasebeta
Cayley diagram

#19155

order256
nilpotency class3
isoclinismisoclinic class of #1685
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4#121
commutator, Frattini, cosocleC42C24
socleC22C2×#121
prime radical#532C22
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

304 conjugacy classes of subgroups; only the 113 normal subgroups are shown.

normal subgroups only

This group has 304 conjugacy classes of subgroups — too many to draw. Only its 113 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) = 32
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 32 points:

(1,2)(3,10)(4,8)(5,14)(6,9)(7,13)(11,16)(12,15)(17,18)(19,25)(20,22)(21,29)(23,27)(24,28)(26,32)(30,31);(1,3,5,13,6,11,4,12)(2,7,8,10,9,15,14,16)(18,22)(23,31)(24,29)(25,32);(3,11)(7,15)(10,16)(12,13)(17,19,20,26)(18,23,22,31)(21,30,28,27)(24,32,29,25);(1,4,6,5)(2,8,9,14)(3,12,11,13)(7,10,15,16)

Polycyclic presentation:

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

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#211777, #211783, #211789, …
maximal normal subgroup of#211777, #211783, #211789, …
maximal quotient of#189077, #197716, #197719, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12143);