Finite Group Databasebeta

#72225667

order1024
nilpotency class3
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C26×C42

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#2840
commutator, Frattini, cosocleC25C25
prime radicalC25×D4C22
LCSG ▷ C25 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C26 ◁ G
LECSG ▷ C25 ▷ C2 ▷ C1

17941 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 5 generators on 20 points:

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

Polycyclic presentation:

2^10|a^2=f,b^2=fj,b^a=bfj,c^a=ci,c^b=ch,d^a=dhj,d^b=dg,e^a=eghi,e^b=eghi,f^c=fj,g^a=gj,h^b=hj,i^a=ij,i^b=ij

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72225688, #72225729, #72225747, …
maximal normal subgroup of#72225688, #72225729, #72225747, …

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