Finite Group Databasebeta

#72247101

order7182
automorphism?
homologyAbelianization (H1) = C2×C3×C9 · Schur multiplier (H2) = C3

Aliases

No aliases for this group.

Splittings

Fitting, socle, derived, HallC7×C19 ⋊ C2×C3×C9
HallΓL(1,𝔽8)×#4296 ⋊ C2
HallD133 ⋊ C3×C9
SylowC19 ⋊ C9×AGL(1,𝔽7)
SylowC7 ⋊ C3×AGL(1,𝔽19)

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC7×C19C2×C3×C9
prime radicalΓL(1,𝔽8)⋊(D19⋊C3)C3
cosocleC7×C19⋊C3C2×C32
LCSG ▷ C7×C19
UCSC1

80 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 133

Polycyclic presentation:

2,3^3,7,19|c^3=d,e^a=e^6,e^b=e^4,f^a=f^18,f^c=f^9,f^d=f^7

Conjugacy classes & character table

68 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×AGL(1,𝔽19)
maximal normal subgroup ofAGL(1,𝔽7)×AGL(1,𝔽19)

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");;
gap> coll := SingleCollector(F, [2, 3, 3, 3, 7, 19]);;
gap> SetPower(coll, 3, F.4);;
gap> SetConjugate(coll, 5, 1, F.5^6);;
gap> SetConjugate(coll, 5, 2, F.5^4);;
gap> SetConjugate(coll, 6, 1, F.6^18);;
gap> SetConjugate(coll, 6, 3, F.6^9);;
gap> SetConjugate(coll, 6, 4, F.6^7);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);