Finite Group Databasebeta

D7×C17×D45 #36339259

order21420
automorphism?
homologyAbelianization (H1) = C22×C17 · Schur multiplier (H2) = C2

Aliases

direct productD7×C17×D45
unambiguous semidirect product(C5×D7)⋊(C17×D9)
unambiguous semidirect product(C9×D7)⋊(D5×C17)

Splittings

Fitting, HallC5×C7×C9×C17 ⋊ C22
derived, HallC5×C7×C9 ⋊ C22×C17
HallC7×C9×C17 ⋊ C2×D5
HallC5×C9×C17 ⋊ C2×D7
HallC5×C7×C17 ⋊ C2×D9
HallC9×C17 ⋊ D5×D7
HallC7×C17 ⋊ C2×D45
HallC5×C17 ⋊ D7×D9
HallC7×C9 ⋊ C2×D5×C17
HallC5×C9 ⋊ C2×D7×C17
HallC5×C7 ⋊ C2×C17×D9
SylowC9 ⋊ D5×D7×C17
SylowC7 ⋊ C2×C17×D45
SylowC5 ⋊ D7×C17×D9

Subgroups

subgroupG/H
center, hypercenterC17D7×D45
commutator, cosocle, hypocenterC5×C7×C9C22×C17
FrattiniC3D7×C17×D15
FittingC5×C7×C9×C17C22
socleC3×C5×C7×C17C2×D3
LCSG ▷ C5×C7×C9
UCSC1 ◁ C17

120 conjugacy classes of subgroups; only the 44 normal subgroups are shown.

normal subgroups only

This group has 120 conjugacy classes of subgroups — too many to draw. Only its 44 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 5355

Conjugacy classes & character table

2040 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21420, 91);