Finite Group Databasebeta

#72331301

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C25×C4 · Schur multiplier (H2) = C215

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, socle, cosocleC24C26
commutatorC23C25×C4
prime radicalC2×#35346C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C24 ▷ C1

55309 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 6 generators on 20 points:

(9,10,11,12)(13,14,16,17)(15,19,20,18);(14,17)(15,20);(2,4)(6,8);(15,20)(18,19);(5,6)(7,8)(13,15)(14,18)(16,20)(17,19);(1,2)(3,4)(5,6)(7,8)(13,14)(15,18)(16,17)(19,20)

Polycyclic presentation:

2^10|a^2=j,b^a=bi,e^a=ei,e^b=ei,e^c=eh,e^d=ei,f^a=fi,f^b=fi,f^c=fg

Conjugacy classes & character table

244 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72331303
maximal normal subgroup of#72331303
maximal quotient of#72333353

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