Finite Group Databasebeta

D21×C197 #22552014

order8274
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C2×C197 · Schur multiplier (H2) = C1

Aliases

direct productD21×C197
unambiguous semidirect productC3⋊(D7×C197)
unambiguous semidirect productC7⋊(D3×C197)

Splittings

Fitting, socle, HallC3×C7×C197 ⋊ C2
derived, HallC3×C7 ⋊ C2×C197
HallC7×C197 ⋊ D3
HallC3×C197 ⋊ D7
SylowC7 ⋊ D3×C197
SylowC3 ⋊ D7×C197

Subgroups

subgroupG/H
center, hypercenterC197D21
commutator, hypocenterC3×C7C2×C197
FrattiniC1G
Fitting, socleC3×C7×C197C2
LCSG ▷ C3×C7
UCSC1 ◁ C197

16 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

2364 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD21×D197, D3×D7×C197, D21⋊D197, …
maximal normal subgroup ofD21×D197, D3×D7×C197, D21⋊D197, …
maximal quotient ofDic21×C197, C2×D21×C197, D63×C197, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(8274, 9);