Finite Group Databasebeta

#72222066

order7056
automorphism?
homologyAbelianization (H1) = C23×C32 · Schur multiplier (H2) = C23×C3

Aliases

No aliases for this group.

Splittings

FittingC22×C72 ⋊ C22×C32
Hall#11716115 ⋊ C32
HallΓL(1,𝔽8)2 ⋊ C2×D4
SylowC72 ⋊ C2×C32×D4

Subgroups

subgroupG/H
center, FrattiniC2C2×AGL(1,𝔽7)2
commutator, socle, cosocleC2×C72C23×C32
FittingC22×C72C22×C32
hypercenterC22AGL(1,𝔽7)2
hypocenterC72C2×C32×D4
LCSG ▷ C2×C72 ▷ C72
UCSC1 ◁ C2 ◁ C22

680 conjugacy classes of subgroups; only the 141 normal subgroups are shown.

normal subgroups only

This group has 680 conjugacy classes of subgroups — too many to draw. Only its 141 normal subgroups are shown.

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

Full subgroup data →

Presentation

Polycyclic presentation:

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

Conjugacy classes & character table

124 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72245383
maximal normal subgroup of#72245383
maximal quotient of#72245397, #72245407, #72245450
holomorph ofΓL(1,𝔽8)⋊C4, C2×AGL(1,𝔽7)

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