Finite Group Databasebeta

#72275813

order8000
automorphism?
homologyAbelianization (H1) = C42×C5 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

FittingM16×5−1+2 ⋊ C4
Sylow5−1+2 ⋊ #339

Subgroups

subgroupG/H
centerC4C22⋊AGL(1,ℤ/25)
commutatorC4×C25C42×C5
FrattiniC2×C4×C5C2×C5×AGL(1,𝔽5)
FittingM16×5−1+2C4
socleC2×C5C5×(C2×AGL(1,𝔽5))⋊C4
prime radicalC22×D25⋊C5D4
cosocleC2×C4×D25C22×C5
hypercenterM16AGL(1,ℤ/25)
hypocenterC25C5×#339
LCSG ▷ C4×C25 ▷ C2×C25 ▷ C25
UCSC1 ◁ C4 ◁ C2×C4 ◁ M16

340 conjugacy classes of subgroups; only the 79 normal subgroups are shown.

normal subgroups only

This group has 340 conjugacy classes of subgroups — too many to draw. Only its 79 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 200

Polycyclic presentation:

2^2,5,2^4,5^2|a^2=d,b^2=de,f^2=g,h^5=i,b^a=bf,e^a=eg,f^a=fg,h^a=h^3i^3,h^b=h^3i^3,h^c=hi^3,h^d=h^4i^4,i^a=i^3,i^b=i^3,i^d=i^4

Conjugacy classes & character table

200 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#104×AGL(1,ℤ/25)
maximal normal subgroup of#104×AGL(1,ℤ/25)

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