Finite Group Databasebeta

#72277464

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

Aliases

No aliases for this group.

Splittings

FittingC7×#585 ⋊ C2×C3
Hall#11741570 ⋊ C3
HallΓL(1,𝔽8) ⋊ #3025
SylowC7 ⋊ C3×#3025

Subgroups

subgroupG/H
centerC4#10620789
commutator, cosocleC23×C7C24×C3
FrattiniC23C23×AGL(1,𝔽7)
FittingC7×#585C2×C3
socleC2×C7C2×C3×#120
hypercenter#585AGL(1,𝔽7)
hypocenterC7C3×#3025
LCSG ▷ C23×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C4 ◁ C22×C4 ◁ #585

1532 conjugacy classes of subgroups; only the 267 normal subgroups are shown.

normal subgroups only

This group has 1532 conjugacy classes of subgroups — too many to draw. Only its 267 normal subgroups are shown.

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

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 4 generators on 23 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

130 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×#3025
maximal normal subgroup ofAGL(1,𝔽7)×#3025

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