Finite Group Databasebeta

#72277387

order2688
automorphism?
homologyAbelianization (H1) = C22×C3×C4 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Splittings

Hall#11729608 ⋊ C3
HallΓL(1,𝔽8) ⋊ #1910
SylowC7 ⋊ C3×#1910

Subgroups

subgroupG/H
centerC2#89992⋊C3
commutatorC2×C4×C7C22×C3×C4
FrattiniC22×C4C22×AGL(1,𝔽7)
FittingC7×#535C2×C3
socleC2×C7C3×#386
prime radicalΓL(1,𝔽8)×#535C2
cosocleC22×C4×C7C23×C3
hypercenter#535AGL(1,𝔽7)
hypocenterC7C3×#1910
LCSG ▷ C2×C4×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C2 ◁ C22×C4 ◁ #535

688 conjugacy classes of subgroups; only the 147 normal subgroups are shown.

normal subgroups only

This group has 688 conjugacy classes of subgroups — too many to draw. Only its 147 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 — 3 generators on 23 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

109 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×#1910
maximal normal subgroup ofAGL(1,𝔽7)×#1910

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