Finite Group Databasebeta

D7×C17×D7⋊C9 #44472541

order29988
automorphism?
homologyAbelianization (H1) = C22×C9×C17 · Schur multiplier (H2) = C2

Aliases

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

Splittings

derived, SylowC72 ⋊ C22×C9×C17
HallC7×C17×C7⋊C9 ⋊ C22
HallD72×C17 ⋊ C9
HallC72×C17 ⋊ C22×C9
HallC7×C7⋊C9 ⋊ C22×C17
HallD72 ⋊ C9×C17

Subgroups

subgroupG/H
center, hypercenterC3×C17D7×AGL(1,𝔽7)
commutator, hypocenterC72C22×C9×C17
FrattiniC3D7×C17×AGL(1,𝔽7)
Fitting, socleC3×C72×C17C22×C3
prime radicalC3×D72×C17C3
cosocleC3×C72C22×C3×C17
LCSG ▷ C72
UCSC1 ◁ C3×C17

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

1785 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(29988, 182);