Finite Group Databasebeta

C2×C3×C17×D21 #16862837

order4284
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C22×C3×C17 · Schur multiplier (H2) = C2

Aliases

direct productC2×C3×C17×D21
unambiguous semidirect product(C2×C3)⋊(C3×D7×C17)

Splittings

Fitting, socleC2×C32×C7×C17 ⋊ C2
derivedC3×C7 ⋊ C22×C3×C17
HallC32×C7×C17 ⋊ C22
HallC32×C17 ⋊ C2×D7
HallC7×C17 ⋊ C2×C3×D3
HallC32×C7 ⋊ C22×C17
SylowC32 ⋊ C2×D7×C17
SylowC7 ⋊ C2×C3×D3×C17

Subgroups

subgroupG/H
center, hypercenterC2×C3×C17D21
commutator, cosocle, hypocenterC3×C7C22×C3×C17
FrattiniC1G
Fitting, socleC2×C32×C7×C17C2
LCSG ▷ C3×C7
UCSC1 ◁ C2×C3×C17

88 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1428

Conjugacy classes & character table

1224 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC3×D5×C17×D21, C2×C3×C5×C17×D21, C2×C3×C17×D105, …
maximal normal subgroup ofC2×C3×C5×C17×D21, C2×C3×C7×C17×D21
maximal quotient ofC3×D5×C17×D21, C2×C3×C5×C17×D21, C2×C3×C17×D105, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(4284, 124);