Finite Group Databasebeta

C3⋊(C3⋊(C7⋊D7)) #11725121

order882
isoclinismisoclinic class of C3⋊(C3⋊(C7⋊D7))
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C3×C7

Aliases

unambiguous semidirect productC3⋊(C3⋊(C7⋊D7))
unambiguous semidirect productC7⋊(C3⋊D21)

Splittings

Fitting, socle, derived, HallC32×C72 ⋊ C2
SylowC72 ⋊ C3⋊D3
SylowC32 ⋊ C7⋊D7

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC32×C72C2
LCSG ▷ C32×C72
UCSC1

120 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 441

Polycyclic presentation:

2,3^2,7^2|b^a=b^2,c^a=c^2,d^a=d^6,e^a=e^6

Conjugacy classes & character table

222 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13183676, C3⋊D3×C7⋊D7, D7×C3⋊D21, …
maximal normal subgroup of#13183676, C3⋊D3×C7⋊D7, D7×C3⋊D21, …
maximal quotient ofC3⋊(C3⋊(C7⋊Dic7)), C2×C3⋊(C3⋊(C7⋊D7)), C5×C3⋊(C3⋊(C7⋊D7)), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(882, 67);