Finite Group Databasebeta

D5×C17×D7⋊C9 #36339207

order21420
automorphism?
homologyAbelianization (H1) = C22×C9×C17 · Schur multiplier (H2) = C2

Aliases

direct productD5×C17×D7⋊C9
unambiguous semidirect productD7⋊(C9×D5×C17)
unambiguous semidirect product(D5×D7)⋊(C9×C17)
unambiguous semidirect product(C5×D7⋊C9)⋊(C2×C17)
unambiguous semidirect product(D5×C7⋊C9)⋊(C2×C17)
unambiguous semidirect product(C5⋊(D7⋊C9))⋊(C2×C17)
unambiguous semidirect product(D5×D7×C17)⋊C9

Splittings

derived, HallC5×C7 ⋊ C22×C9×C17
HallC5×C17×C7⋊C9 ⋊ C22
HallD5×D7×C17 ⋊ C9
HallC17×C7⋊C9 ⋊ C2×D5
HallC5×C7×C17 ⋊ C22×C9
HallC5×C7⋊C9 ⋊ C22×C17
HallD5×D7 ⋊ C9×C17
HallC7×C17 ⋊ C2×C9×D5
HallC5×C17 ⋊ C2×D7⋊C9
HallC7⋊C9 ⋊ C2×D5×C17
SylowC7 ⋊ C2×C9×D5×C17
SylowC5 ⋊ C2×C17×D7⋊C9

Subgroups

subgroupG/H
center, hypercenterC3×C17D5×AGL(1,𝔽7)
commutator, hypocenterC5×C7C22×C9×C17
FrattiniC3D5×C17×AGL(1,𝔽7)
Fitting, socleC3×C5×C7×C17C22×C3
prime radicalC3×D5×D7×C17C3
cosocleC3×C5×C7C22×C3×C17
LCSG ▷ C5×C7
UCSC1 ◁ C3×C17

120 conjugacy classes of subgroups; only the 54 normal subgroups are shown.

normal subgroups only

This group has 120 conjugacy classes of subgroups — too many to draw. Only its 54 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

1428 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21420, 39);