Finite Group Databasebeta

#72259948

order2688
automorphism?
homologyAbelianization (H1) = C25×C3 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Splittings

FittingC7×H(3,𝔽4) ⋊ C2×C3
Hall#11744158 ⋊ C3
HallΓL(1,𝔽8) ⋊ #3532
SylowC7 ⋊ C3×#3532

Subgroups

subgroupG/H
center, FrattiniC22C24×AGL(1,𝔽7)
commutator, socle, cosocleC22×C7C25×C3
FittingC7×H(3,𝔽4)C2×C3
hypercenterH(3,𝔽4)AGL(1,𝔽7)
hypocenterC7C3×#3532
LCSG ▷ C22×C7 ▷ C7
UCSC1 ◁ C22 ◁ H(3,𝔽4)

2672 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 23
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 5 generators on 23 points:

(1,2,7)(3,4,6)(9,12)(10,14)(18,22)(20,23);(9,12)(13,15)(17,21)(18,22);(8,10)(9,13)(11,14)(12,15)(16,18,19,22)(17,20,21,23);(8,9,11,12)(10,13,14,15)(16,17)(18,20)(19,21)(22,23);(2,3)(4,6)(5,7)(9,12)(13,15)(18,22)(20,23)

Polycyclic presentation:

2^5,3,2^2,7|b^2=g,c^2=h,b^a=bg,c^a=ch,d^b=dgh,d^c=dh,e^b=eg,e^c=egh,i^a=i^6,i^f=i^4

Conjugacy classes & character table

133 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72260001, AGL(1,𝔽7)×#3532
maximal normal subgroup of#72260001, AGL(1,𝔽7)×#3532

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