Finite Group Databasebeta

#72310198

order1024
nilpotency class4
automorphism?
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C2×#442
commutatorC2×C8C24×C4
Frattini, cosocleC22×C8C25
socleC22C22×#442
prime radical#7623096C2
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C42 ◁ #20473 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

2828 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 40
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 40 points:

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

Polycyclic presentation:

2^10|a^2=f,c^2=fj,d^2=gj,e^2=ghj,g^2=i,i^2=j,b^a=bh,c^a=cj,c^b=ch,d^a=dg,d^b=dh,d^c=di,e^a=egj,e^b=eh,e^c=ei,f^d=fj,f^e=fj,g^a=gi,g^c=gj,i^a=ij

Conjugacy classes & character table

124 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72314111, #72314329, #72315244
maximal normal subgroup of#72314111, #72314329, #72315244

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from its polycyclic presentation:

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e", "f", "g", "h", "i", "j");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 2, 2, 2, 2, 2, 2]);;
gap> SetPower(coll, 1, F.6);;
gap> SetPower(coll, 3, F.6*F.10);;
gap> SetPower(coll, 4, F.7*F.10);;
gap> SetPower(coll, 5, F.7*F.8*F.10);;
gap> SetPower(coll, 7, F.9);;
gap> SetPower(coll, 9, F.10);;
gap> SetConjugate(coll, 2, 1, F.2*F.8);;
gap> SetConjugate(coll, 3, 1, F.3*F.10);;
gap> SetConjugate(coll, 3, 2, F.3*F.8);;
gap> SetConjugate(coll, 4, 1, F.4*F.7);;
gap> SetConjugate(coll, 4, 2, F.4*F.8);;
gap> SetConjugate(coll, 4, 3, F.4*F.9);;
gap> SetConjugate(coll, 5, 1, F.5*F.7*F.10);;
gap> SetConjugate(coll, 5, 2, F.5*F.8);;
gap> SetConjugate(coll, 5, 3, F.5*F.9);;
gap> SetConjugate(coll, 6, 4, F.6*F.10);;
gap> SetConjugate(coll, 6, 5, F.6*F.10);;
gap> SetConjugate(coll, 7, 1, F.7*F.9);;
gap> SetConjugate(coll, 7, 3, F.7*F.10);;
gap> SetConjugate(coll, 9, 1, F.9*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);