#72214932

order	9408
automorphism	?
homology	Abelianization (H₁) = C₂²×C₃×C₄ · Schur multiplier (H₂) = C₂³

Aliases

No aliases for this group.

Splittings

Hall	#72214925 ⋊ C₃
Hall	#3861 ⋊ C₂×#100
Sylow	C₇² ⋊ C₂×C₃×#100

Subgroups

	subgroup	G/H
center	C₂	#72214931
commutator	C₂²×C₇²	C₂²×C₃×C₄
Frattini	C₂×C₄	C₂×#64423⋊C₂
Fitting	C₂×C₇²×D₄	C₂²×C₃
socle	C₂×C₇²	C₂×C₃×C₂²⋊C₄
prime radical	C₂×D₄×#64424	C₂
cosocle	C₂×C₄×C₇²	C₂³×C₃
hypercenter	C₂×D₄	#64423⋊C₂
hypocenter	C₇²	C₂×C₃×#100
LCS	G ▷ C₂²×C₇² ▷ C₂×C₇² ▷ C₇²
UCS	C₁ ◁ C₂ ◁ C₂×C₄ ◁ C₂×D₄

1452 conjugacy classes of subgroups; only the 115 normal subgroups are shown.

normal subgroups only

This group has 1452 conjugacy classes of subgroups — too many to draw. Only its 115 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:

2^3,3,2^3,7^2|a^2=e,e^2=g,f^2=g,b^a=befg,e^b=eg,f^a=fg,f^b=fg,h^a=h^6,h^c=h^6,h^d=h^2,i^a=h^2i,i^c=i^6,i^d=i^2

Conjugacy classes & character table

118 conjugacy classes — view the full character table.

Relationships

maximal subgroup of	#72215081
maximal normal subgroup of	#72215081

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