Finite Group Databasebeta

D5×C17⋊(D7⋊C9) #36339209

order21420
automorphism?
homologyAbelianization (H1) = C22×C9 · Schur multiplier (H2) = C2

Aliases

direct productD5×C17⋊(D7⋊C9)
unambiguous semidirect product(D5×C17)⋊(D7⋊C9)
unambiguous semidirect product(D5×C7⋊C9)⋊D17
unambiguous semidirect product(D5×D119)⋊C9

Splittings

derived, HallC5×C7×C17 ⋊ C22×C9
HallC5×C17×C7⋊C9 ⋊ C22
HallD5×D119 ⋊ C9
HallC17×C7⋊C9 ⋊ C2×D5
HallC5×C7⋊C9 ⋊ C2×D17
HallC7×C17 ⋊ C2×C9×D5
HallC5×C17 ⋊ C2×D7⋊C9
HallC7⋊C9 ⋊ D5×D17
HallC5×C7 ⋊ C2×C9×D17
SylowC17 ⋊ D5×D7⋊C9
SylowC7 ⋊ C9×D5×D17
SylowC5 ⋊ C2×C17⋊(D7⋊C9)

Subgroups

subgroupG/H
center, Frattini, hypercenterC3D5×C17⋊AGL(1,𝔽7)
commutator, hypocenterC5×C7×C17C22×C9
Fitting, socle, cosocleC3×C5×C7×C17C22×C3
prime radicalC3×D5×D119C3
LCSG ▷ C5×C7×C17
UCSC1 ◁ C3

120 conjugacy classes of subgroups; only the 42 normal subgroups are shown.

normal subgroups only

This group has 120 conjugacy classes of subgroups — too many to draw. Only its 42 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

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21420, 41);