Finite Group Databasebeta

#72245266

order4704
automorphism?
homologyAbelianization (H1) = C23×C3 · Schur multiplier (H2) = C22×C7

Aliases

No aliases for this group.

Splittings

FittingC72×#41 ⋊ C2×C3
Hall#13096589 ⋊ C3
Hall#3862 ⋊ AGL(1,ℤ/8)
SylowC72 ⋊ C3×AGL(1,ℤ/8)

Subgroups

subgroupG/H
centerC2C2×#11924222
commutator, cosocleC4×C72C23×C3
FrattiniC4C22×#64425
FittingC72×#41C2×C3
socleC2×C72C2×C3×D4
hypercenter#41#64425
hypocenterC72C3×AGL(1,ℤ/8)
LCSG ▷ C4×C72 ▷ C2×C72 ▷ C72
UCSC1 ◁ C2 ◁ C2×C4 ◁ #41

340 conjugacy classes of subgroups; only the 67 normal subgroups are shown.

normal subgroups only

This group has 340 conjugacy classes of subgroups — too many to draw. Only its 67 normal subgroups are shown.

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

Full subgroup data →

Presentation

transitive degreeμt(G) = 168

Polycyclic presentation:

2^3,3,2^2,7^2|a^2=e,e^2=f,b^a=bef,c^a=cf,e^b=ef,g^a=g^6,g^b=g^6,g^d=h,h^a=h^6,h^b=h^6,h^d=g^6h^6

Conjugacy classes & character table

113 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,ℤ/8)×#64425, #72245404, #72246324, …
maximal normal subgroup ofAGL(1,ℤ/8)×#64425, #72245404, #72246324, …

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