Finite Group Databasebeta
Cayley diagram

#20671

order256
nilpotency class3
isoclinismisoclinic class of #20671
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC4C2×#117
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC2C2×#380
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C4 ◁ C22×M16 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

662 conjugacy classes of subgroups; only the 261 normal subgroups are shown.

normal subgroups only

This group has 662 conjugacy classes of subgroups — too many to draw. Only its 261 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)(3,11)(4,15,17,8)(5,18)(6,10)(7,14)(9,19)(12,25,26,23)(13,24)(16,22,31,30)(20,27,29,32)(21,28);(1,3,5,14,6,13,19,28)(2,7,9,11,10,21,18,24)(4,12,16,27,17,26,31,32)(8,20,22,23,15,29,30,25);(1,4)(2,8)(3,12)(5,16)(6,17)(7,20)(9,22)(10,15)(11,23)(13,26)(14,27)(18,30)(19,31)(21,29)(24,25)(28,32);(3,13)(7,21)(11,24)(12,26)(14,28)(20,29)(23,25)(27,32)

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#138354, #138355, #148017, …
maximal normal subgroup of#138354, #138355, #148017, …
maximal quotient of#188755, #188756, #188759, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13659);