Finite Group Databasebeta
Cayley diagram

#21883

order256
nilpotency class3
isoclinismisoclinic class of #17405
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C22×C22⋊C4
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
prime radicalC24C22×C4
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C2×#117 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

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

normal subgroups only

This group has 477 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) = 40
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 40 points:

(2,5)(3,7)(9,10,14,18,13,17,27,34)(11,19,22,36,21,15,29,31)(12,23,26,35,25,16,28,33)(20,30,37,39,24,32,38,40);(1,2)(3,6)(4,5)(7,8)(9,11)(10,15)(12,24)(13,21)(14,22)(16,32)(17,19)(18,31)(20,25)(23,30)(26,38)(27,29)(28,37)(33,40)(34,36)(35,39);(2,5)(6,8)(9,12,13,25)(10,16,17,23)(11,20,21,24)(14,28,27,26)(15,30,19,32)(18,35,34,33)(22,38,29,37)(31,40,36,39);(1,3,4,7)(2,6,5,8)(10,17)(11,21)(16,23)(18,34)(20,24)(22,29)(33,35)(37,38)

Polycyclic presentation:

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

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#214929, #214931, #214933, …
maximal normal subgroup of#214929, #214931, #214933, …
maximal quotient of#216195, #216197, #216201, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14871);