Finite Group Databasebeta

C2×C7×C17×D21 #23756275

order9996
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C22×C7×C17 · Schur multiplier (H2) = C2

Aliases

direct productC2×C7×C17×D21
unambiguous semidirect product(C2×C3)⋊(C7×D7×C17)
unambiguous semidirect product(C2×C7)⋊(D3×C7×C17)

Splittings

Fitting, socleC2×C3×C72×C17 ⋊ C2
derivedC3×C7 ⋊ C22×C7×C17
HallC3×C72×C17 ⋊ C22
HallC72×C17 ⋊ C2×D3
HallC3×C72 ⋊ C22×C17
HallC3×C17 ⋊ C2×C7×D7
SylowC72 ⋊ C2×D3×C17
SylowC3 ⋊ C2×C7×D7×C17

Subgroups

subgroupG/H
center, hypercenterC2×C7×C17D21
commutator, cosocle, hypocenterC3×C7C22×C7×C17
FrattiniC1G
Fitting, socleC2×C3×C72×C17C2
LCSG ▷ C3×C7
UCSC1 ◁ C2×C7×C17

104 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

2856 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC2×C17×#11725071, C2×C7×C17×D63, C2×C17×C3⋊#64418, …
maximal normal subgroup ofC2×C7×C17×C3⋊AGL(1,𝔽7), C2×C17×ΓL(1,𝔽8)×D21, C2×C17×C3⋊#64423, …
maximal quotient ofC2×C7×C17×D63, D3×C7×C17×D21, C2×C3×C7×C17×D21, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(9996, 178);