Finite Group Databasebeta

D11×D21 #11745118

order924
isoclinismisoclinic class of D11×D21
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

direct productD11×D21
unambiguous semidirect product(C3×D11)⋊D7
unambiguous semidirect product(C7×D11)⋊D3

Splittings

Fitting, socle, derived, HallC3×C7×C11 ⋊ C22
HallC7×C11 ⋊ C2×D3
HallC3×C11 ⋊ C2×D7
HallC3×C7 ⋊ C2×D11
SylowC11 ⋊ C2×D21
SylowC7 ⋊ D3×D11
SylowC3 ⋊ D7×D11

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C7×C11C22
LCSG ▷ C3×C7×C11
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 231

Conjugacy classes & character table

84 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD3×D7×D11, C2×D11×D21, D11×D63, …
maximal normal subgroup ofD3×D7×D11, C2×D11×D21, D11×C3⋊AGL(1,𝔽7), …
maximal quotient ofD11×Dic21, D21×Dic11, #14270468, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(924, 19);