Finite Group Databasebeta
Cayley diagram

#111294

order512
nilpotency class3
isoclinismisoclinic class of #10524
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4#394
commutatorC2×C42C22×C4
Frattini, cosocleC22×C42C23
socleC22#1438
prime radical#60907C2
LCSG ▷ C2×C42 ▷ C22 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C42 ▷ C22 ▷ C1

836 conjugacy classes of subgroups; only the 138 normal subgroups are shown.

normal subgroups only

This group has 836 conjugacy classes of subgroups — too many to draw. Only its 138 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 — 3 generators on 40 points:

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

Polycyclic presentation:

2^9|a^2=g,d^2=i,e^2=hi,f^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eh,c^b=cf,d^b=di,e^b=eh,f^b=fh,g^b=ghi,d^c=dh,e^c=ehi,f^c=fh,g^c=gi

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(512, 18490);