Finite Group Databasebeta
Cayley diagram

#17676

order256
nilpotency class3
isoclinismisoclinic class of #17577
automorphismAut(G) order 65536
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, cosocleC42C24
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

477 conjugacy classes of subgroups; only the 187 normal subgroups are shown.

normal subgroups only

This group has 477 conjugacy classes of subgroups — too many to draw. Only its 187 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) = 64

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106185, #107505, #107577, …
maximal normal subgroup of#106185, #107505, #107577, …
maximal quotient of#160582, #160603, #160626, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10664);