Finite Group Databasebeta

#72228933

order2688
automorphism?
homologyAbelianization (H1) = C2×C3×C42 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Splittings

FittingC22×C42×C7 ⋊ C2×C3
Hall#11729291 ⋊ C3
HallΓL(1,𝔽8) ⋊ #1437
SylowC7 ⋊ C3×#1437

Subgroups

subgroupG/H
center, FrattiniC24C22×AGL(1,𝔽7)
commutatorC22×C7C2×C3×C42
FittingC22×C42×C7C2×C3
socle, cosocleC24×C7C23×C3
prime radicalC24×AGL(1,𝔽7)C22
hypercenterC22×C42AGL(1,𝔽7)
hypocenterC7C3×#1437
LCSG ▷ C22×C7 ▷ C7
UCSC1 ◁ C24 ◁ C22×C42

1656 conjugacy classes of subgroups; only the 381 normal subgroups are shown.

normal subgroups only

This group has 1656 conjugacy classes of subgroups — too many to draw. Only its 381 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) = 448

A minimal faithful permutation representation — 3 generators on 23 points:

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

Polycyclic presentation:

2^3,3,2^4,7|a^2=f,c^2=h,b^a=be,c^b=cg,i^b=i^6,i^d=i^4

Conjugacy classes & character table

232 conjugacy classes — view the full character table.

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