Finite Group Databasebeta

C7×D17×D7⋊C9 #44472525

order29988
automorphism?
homologyAbelianization (H1) = C22×C7×C9 · Schur multiplier (H2) = C2

Aliases

direct productC7×D17×D7⋊C9
unambiguous semidirect productD7⋊(C7×C9×D17)
unambiguous semidirect product(D7×D17)⋊(C7×C9)
unambiguous semidirect product(D17×C7⋊C9)⋊(C2×C7)
unambiguous semidirect product(C17×D7⋊C9)⋊(C2×C7)
unambiguous semidirect product(C17⋊(D7⋊C9))⋊(C2×C7)

Splittings

derivedC7×C17 ⋊ C22×C7×C9
HallC7×C17×C7⋊C9 ⋊ C22
HallC7×D7×D17 ⋊ C9
HallC72×C17 ⋊ C22×C9
HallC7×C7⋊C9 ⋊ C2×D17
SylowC72 ⋊ C2×C9×D17
SylowC17 ⋊ C2×C7×D7⋊C9

Subgroups

subgroupG/H
center, hypercenterC3×C7D17×AGL(1,𝔽7)
commutator, hypocenterC7×C17C22×C7×C9
FrattiniC3C7×D17×AGL(1,𝔽7)
Fitting, socleC3×C72×C17C22×C3
prime radicalC3×C7×D7×D17C3
cosocleC3×C7×C17C22×C3×C7
LCSG ▷ C7×C17
UCSC1 ◁ C3×C7

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

normal subgroups only

This group has 128 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) = 2142

Conjugacy classes & character table

1470 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(29988, 166);