Finite Group Databasebeta

#72245219

order3528
automorphism?
homologyAbelianization (H1) = C22×C32 · Schur multiplier (H2) = C3

Aliases

No aliases for this group.

Splittings

HallΓL(1,𝔽8)2 ⋊ Q8
Hall#87642 ⋊ C32
SylowC72 ⋊ C32×Q8

Subgroups

subgroupG/H
center, Frattini, hypercenterC2AGL(1,𝔽7)2
commutator, Fitting, socle, cosocleC2×C72C22×C32
prime radicalC2×ΓL(1,𝔽8)2C22
hypocenterC72C32×Q8
LCSG ▷ C2×C72 ▷ C72
UCSC1 ◁ C2

150 conjugacy classes of subgroups; only the 50 normal subgroups are shown.

normal subgroups only

This group has 150 conjugacy classes of subgroups — too many to draw. Only its 50 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:

2^2,3^2,2,7^2|a^2=e,b^2=e,b^a=be,f^a=f^6,f^b=f^6,f^c=f^4,f^d=f^2,g^a=f^6g,g^b=g^6,g^c=f^5g,g^d=g^2

Conjugacy classes & character table

71 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72245242, #72245296, #72245303
maximal normal subgroup of#72245242, #72245296, #72245303

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