Finite Group Databasebeta

#72276540

order2688
automorphism?
homologyAbelianization (H1) = C24×C3 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Splittings

FittingC7×#447 ⋊ C2×C3
Hall#11737447 ⋊ C3
HallΓL(1,𝔽8) ⋊ #3003
SylowC7 ⋊ C3×#3003

Subgroups

subgroupG/H
centerC22C2×D4×AGL(1,𝔽7)
commutator, cosocleC2×C4×C7C24×C3
FrattiniC2×C4C23×AGL(1,𝔽7)
FittingC7×#447C2×C3
socleC22×C7C22×C3×D4
hypercenter#447AGL(1,𝔽7)
hypocenterC7C3×#3003
LCSG ▷ C2×C4×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C22 ◁ C22×C4 ◁ #447

1988 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 4 generators on 19 points:

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

Polycyclic presentation:

2^4,3,2^3,7|a^2=f,f^2=h,b^a=bg,c^a=cf,d^a=dh,f^c=fh,i^d=i^6,i^e=i^4

Conjugacy classes & character table

115 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×#3003
maximal normal subgroup ofAGL(1,𝔽7)×#3003

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