Finite Group Databasebeta

#72314185

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

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C23×#106
commutatorC2×C8C24×C4
Frattini, cosocleC22×C8C25
prime radicalC23×D4SD16
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×C4×D4 ◁ C22×C8×D4 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

2940 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:

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

Polycyclic presentation:

2^10|c^2=f,d^2=gj,e^2=h,h^2=i,i^2=j,c^b=cg,d^a=dgj,e^c=eh,f^e=fj,h^c=hi,i^c=ij

Conjugacy classes & character table

148 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72314202, #72314559, #72315522
maximal normal subgroup of#72314202, #72314559, #72315522

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, 3, F.6);;
gap> SetPower(coll, 4, F.7*F.10);;
gap> SetPower(coll, 5, F.8);;
gap> SetPower(coll, 8, F.9);;
gap> SetPower(coll, 9, F.10);;
gap> SetConjugate(coll, 3, 2, F.3*F.7);;
gap> SetConjugate(coll, 4, 1, F.4*F.7*F.10);;
gap> SetConjugate(coll, 5, 3, F.5*F.8);;
gap> SetConjugate(coll, 6, 5, F.6*F.10);;
gap> SetConjugate(coll, 8, 3, F.8*F.9);;
gap> SetConjugate(coll, 9, 3, F.9*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);