Finite Group Databasebeta
Cayley diagram

#20892

order256
nilpotency class3
isoclinismisoclinic class of #3026
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC4C2×#120
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socleC2C2×#385
prime radicalC22×#41C22
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C4 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

660 conjugacy classes of subgroups; only the 237 normal subgroups are shown.

normal subgroups only

This group has 660 conjugacy classes of subgroups — too many to draw. Only its 237 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#148247, #148248, #148250, …
maximal normal subgroup of#148247, #148248, #148250, …
maximal quotient of#192028, #192029, #192032, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13880);