Finite Group Databasebeta

#72330145

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C26 · Schur multiplier (H2) = C215

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutator, Frattini, socle, cosocleC24C26
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C24 ▷ C1

73557 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:

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

Polycyclic presentation:

2^10|b^2=g,e^2=g,b^a=bi,c^b=cij,d^b=dh,e^a=eij,e^c=eij,e^d=eh,f^b=fg,f^c=fij,f^d=fhij,f^e=fg

Conjugacy classes & character table

160 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72330185, #72330942, D4×#34980, …
maximal normal subgroup of#72330185, #72330942, D4×#34980, …
maximal quotient of#72330641, #72333324, C2×#72330145, …

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