Finite Group Databasebeta

D21×C157 #20268641

order6594
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C2×C157 · Schur multiplier (H2) = C1

Aliases

direct productD21×C157
unambiguous semidirect productC3⋊(D7×C157)
unambiguous semidirect productC7⋊(D3×C157)

Splittings

Fitting, socle, HallC3×C7×C157 ⋊ C2
derived, HallC3×C7 ⋊ C2×C157
HallC7×C157 ⋊ D3
HallC3×C157 ⋊ D7
SylowC7 ⋊ D3×C157
SylowC3 ⋊ D7×C157

Subgroups

subgroupG/H
center, hypercenterC157D21
commutator, hypocenterC3×C7C2×C157
FrattiniC1G
Fitting, socleC3×C7×C157C2
LCSG ▷ C3×C7
UCSC1 ◁ C157

16 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

1884 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD21×D157, D3×D7×C157, D21⋊D157, …
maximal normal subgroup ofD21×D157, D3×D7×C157, D21⋊D157, …
maximal quotient ofDic21×C157, C2×D21×C157, D63×C157, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(6594, 11);