Properties

Label 1521.71
Modulus $1521$
Conductor $507$
Order $156$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1521, base_ring=CyclotomicField(156))
 
M = H._module
 
chi = DirichletCharacter(H, M([78,137]))
 
pari: [g,chi] = znchar(Mod(71,1521))
 

Basic properties

Modulus: \(1521\)
Conductor: \(507\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(156\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{507}(71,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1521.cd

\(\chi_{1521}(71,\cdot)\) \(\chi_{1521}(98,\cdot)\) \(\chi_{1521}(197,\cdot)\) \(\chi_{1521}(206,\cdot)\) \(\chi_{1521}(215,\cdot)\) \(\chi_{1521}(305,\cdot)\) \(\chi_{1521}(314,\cdot)\) \(\chi_{1521}(323,\cdot)\) \(\chi_{1521}(332,\cdot)\) \(\chi_{1521}(422,\cdot)\) \(\chi_{1521}(431,\cdot)\) \(\chi_{1521}(440,\cdot)\) \(\chi_{1521}(449,\cdot)\) \(\chi_{1521}(539,\cdot)\) \(\chi_{1521}(548,\cdot)\) \(\chi_{1521}(557,\cdot)\) \(\chi_{1521}(566,\cdot)\) \(\chi_{1521}(656,\cdot)\) \(\chi_{1521}(665,\cdot)\) \(\chi_{1521}(674,\cdot)\) \(\chi_{1521}(683,\cdot)\) \(\chi_{1521}(773,\cdot)\) \(\chi_{1521}(782,\cdot)\) \(\chi_{1521}(791,\cdot)\) \(\chi_{1521}(800,\cdot)\) \(\chi_{1521}(890,\cdot)\) \(\chi_{1521}(899,\cdot)\) \(\chi_{1521}(908,\cdot)\) \(\chi_{1521}(917,\cdot)\) \(\chi_{1521}(1007,\cdot)\) ...

sage: chi.galois_orbit()
 
order = charorder(g,chi)
 
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Related number fields

Field of values: $\Q(\zeta_{156})$
Fixed field: Number field defined by a degree 156 polynomial (not computed)

Values on generators

\((677,847)\) → \((-1,e\left(\frac{137}{156}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(14\)\(16\)\(17\)
\( \chi_{ 1521 }(71, a) \) \(1\)\(1\)\(e\left(\frac{59}{156}\right)\)\(e\left(\frac{59}{78}\right)\)\(e\left(\frac{21}{52}\right)\)\(e\left(\frac{151}{156}\right)\)\(e\left(\frac{7}{52}\right)\)\(e\left(\frac{61}{78}\right)\)\(e\left(\frac{149}{156}\right)\)\(e\left(\frac{9}{26}\right)\)\(e\left(\frac{20}{39}\right)\)\(e\left(\frac{28}{39}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1521 }(71,a) \;\) at \(\;a = \) e.g. 2