Finite Group Databasebeta

#72217907

order2240
automorphism?
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

FittingC5×C7×C8 ⋊ C2×C4
HallC5×C7 ⋊ C4×M16
SylowC7 ⋊ M16×AGL(1,𝔽5)
SylowC5 ⋊ #89479

Subgroups

subgroupG/H
center, FrattiniC4C2×D7×AGL(1,𝔽5)
commutator, socleC2×C5×C7C2×C42
FittingC5×C7×C8C2×C4
prime radicalC2×D5×D7C2×C4
cosocleC4×C7×D5C23
hypercenterC8D7×AGL(1,𝔽5)
hypocenterC5×C7C4×M16
LCSG ▷ C2×C5×C7 ▷ C5×C7
UCSC1 ◁ C4 ◁ C8

284 conjugacy classes of subgroups; only the 92 normal subgroups are shown.

normal subgroups only

This group has 284 conjugacy classes of subgroups — too many to draw. Only its 92 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:

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

Conjugacy classes & character table

134 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72217915, D7×M16×AGL(1,𝔽5), #72218536, …
maximal normal subgroup of#72217915, D7×M16×AGL(1,𝔽5), #72218536, …

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