Finite Group Databasebeta
Cayley diagram

#17621

order256
nilpotency class3
isoclinismisoclinic class of #17597
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C22×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×D4D4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C4×D4 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

495 conjugacy classes of subgroups; only the 183 normal subgroups are shown.

normal subgroups only

This group has 495 conjugacy classes of subgroups — too many to draw. Only its 183 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) = 32

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

49 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#253509, #253515, #253521, …
maximal normal subgroup of#253509, #253515, #253521, …
maximal quotient of#160636, #160637, #160898, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10609);