Finite Group Databasebeta

#72242124

order2560
automorphism?
homologyAbelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C22×C4

Aliases

No aliases for this group.

Splittings

FittingC5×#2171 ⋊ C4
SylowC5 ⋊ #128694

Subgroups

subgroupG/H
centerC4#10604420
commutatorC5×C8C2×C4×C8
FrattiniC4×C8C22×AGL(1,𝔽5)
FittingC5×#2171C4
socleC2×C5#8200
prime radicalD5×#135C2×C4
cosocleC4×C8×D5C23
hypercenter#2171AGL(1,𝔽5)
hypocenterC5#128694
LCSG ▷ C5×C8 ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C4 ◁ C2×C8 ◁ #346 ◁ #2171

632 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 160

Polycyclic presentation:

2^9,5|a^2=d,b^2=dgi,c^2=e,d^2=g,e^2=h,f^2=h,g^2=i,h^2=i,b^a=bi,c^a=cf,c^b=ch,d^c=di,e^a=eh,e^b=ei,f^a=fh,f^b=fi,h^a=hi,j^c=j^3,j^e=j^4

Conjugacy classes & character table

136 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽5)×#12068
maximal normal subgroup ofAGL(1,𝔽5)×#12068

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