Finite Group Databasebeta

D1287 #14579461

order2574
isoclinismisoclinic class of D1287
automorphismAut(G) order 926640
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD1287
unambiguous semidirect productC9⋊D143
unambiguous semidirect productC11⋊D117
unambiguous semidirect productC13⋊D99

Splittings

Fitting, derived, HallC9×C11×C13 ⋊ C2
HallC11×C13 ⋊ D9
HallC9×C13 ⋊ D11
HallC9×C11 ⋊ D13
SylowC13 ⋊ D99
SylowC11 ⋊ D117
SylowC9 ⋊ D143

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC9×C11×C13C2
FrattiniC3D429
socleC3×C11×C13D3
LCSG ▷ C9×C11×C13
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 33
transitive degreeμt(G) = 1287

A minimal faithful permutation representation — 2 generators on 33 points:

(1,2,3,4,5,6,7,8,9)(10,11,12,13,14,15,16,17,18,19,20)(21,22,23,24,25,26,27,28,29,30,31,32,33);(2,9)(3,8)(4,7)(5,6)(11,20)(12,19)(13,18)(14,17)(15,16)(22,33)(23,32)(24,31)(25,30)(26,29)(27,28)

Polycyclic presentation:

2,3,11,13,3|b^3=e^2,b^a=b^2e,c^a=c^10,d^a=d^12,e^a=e^2

Conjugacy classes & character table

645 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC5×D1287, D6435, C9⋊(C13⋊AGL(1,𝔽11)), …
maximal normal subgroup ofC5×D1287, C9⋊(C13⋊AGL(1,𝔽11)), C7×D1287, …
maximal quotient ofC5×D1287, D6435, C7×D1287, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(2574, 12);