Finite Group Databasebeta

(C7⋊C9)⋊D247 #44527629

order31122
automorphism?
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C7⋊C9)⋊D247

Splittings

derived, HallC7×C13×C19 ⋊ C2×C9
HallC13×C19×C7⋊C9 ⋊ C2
HallD1729 ⋊ C9
HallC19×C7⋊C9 ⋊ D13
HallC13×C7⋊C9 ⋊ D19
HallC13×C19 ⋊ D7⋊C9
HallC7×C19 ⋊ C9×D13
HallC7×C13 ⋊ C9×D19
HallC7⋊C9 ⋊ D247
SylowC19 ⋊ (C7⋊C9)⋊D13
SylowC13 ⋊ (C7⋊C9)⋊D19
SylowC7 ⋊ C9×D247

Subgroups

subgroupG/H
center, Frattini, hypercenterC3ΓL(1,𝔽8)⋊D247
commutator, hypocenterC7×C13×C19C2×C9
Fitting, socle, cosocleC3×C7×C13×C19C2×C3
prime radicalC3×D1729C3
LCSG ▷ C7×C13×C19
UCSC1 ◁ C3

48 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 15561

Polycyclic presentation:

2,3,7,13,19,3|b^3=f,c^a=c^6,d^a=d^12,e^a=e^18,c^b=c^2

Conjugacy classes & character table

1866 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31122, 112);