Finite Group Databasebeta

#72249124

order3402
automorphism?
homologyAbelianization (H1) = C2×C34 · Schur multiplier (H2) = C35

Aliases

No aliases for this group.

Splittings

Hall#13133672 ⋊ C2
HallD7 ⋊ 3−1+4
SylowC7 ⋊ C2×3−1+4

Subgroups

subgroupG/H
center, FrattiniC3C33×AGL(1,𝔽7)
commutator, socle, cosocleC3×C7C2×C34
FittingC3×C7×H(3,𝔽3)C2×C3
prime radicalC3×D7×H(3,𝔽3)C3
hypercenterC3×H(3,𝔽3)AGL(1,𝔽7)
hypocenterC7C2×3−1+4
LCSG ▷ C3×C7 ▷ C7
UCSC1 ◁ C3 ◁ C3×H(3,𝔽3)

920 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 189

Polycyclic presentation:

2,3^5,7|b^3=f,d^b=df,d^c=df,e^b=ef^2,g^a=g^6,g^b=g^2

Conjugacy classes & character table

199 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×3−1+4, #72249151, #72249152
maximal normal subgroup ofAGL(1,𝔽7)×3−1+4, #72249151, #72249152

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