Properties

Label 1681.17
Modulus $1681$
Conductor $1681$
Order $1640$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1681, base_ring=CyclotomicField(1640))
 
M = H._module
 
chi = DirichletCharacter(H, M([1633]))
 
pari: [g,chi] = znchar(Mod(17,1681))
 

Basic properties

Modulus: \(1681\)
Conductor: \(1681\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(1640\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1681.p

\(\chi_{1681}(6,\cdot)\) \(\chi_{1681}(7,\cdot)\) \(\chi_{1681}(11,\cdot)\) \(\chi_{1681}(12,\cdot)\) \(\chi_{1681}(13,\cdot)\) \(\chi_{1681}(15,\cdot)\) \(\chi_{1681}(17,\cdot)\) \(\chi_{1681}(19,\cdot)\) \(\chi_{1681}(22,\cdot)\) \(\chi_{1681}(24,\cdot)\) \(\chi_{1681}(26,\cdot)\) \(\chi_{1681}(28,\cdot)\) \(\chi_{1681}(29,\cdot)\) \(\chi_{1681}(30,\cdot)\) \(\chi_{1681}(34,\cdot)\) \(\chi_{1681}(35,\cdot)\) \(\chi_{1681}(47,\cdot)\) \(\chi_{1681}(48,\cdot)\) \(\chi_{1681}(52,\cdot)\) \(\chi_{1681}(53,\cdot)\) \(\chi_{1681}(54,\cdot)\) \(\chi_{1681}(56,\cdot)\) \(\chi_{1681}(58,\cdot)\) \(\chi_{1681}(60,\cdot)\) \(\chi_{1681}(63,\cdot)\) \(\chi_{1681}(65,\cdot)\) \(\chi_{1681}(67,\cdot)\) \(\chi_{1681}(69,\cdot)\) \(\chi_{1681}(70,\cdot)\) \(\chi_{1681}(71,\cdot)\) ...

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: $\Q(\zeta_{1640})$
Fixed field: Number field defined by a degree 1640 polynomial (not computed)

Values on generators

\(6\) → \(e\left(\frac{1633}{1640}\right)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 1681 }(17, a) \) \(-1\)\(1\)\(e\left(\frac{349}{820}\right)\)\(e\left(\frac{187}{328}\right)\)\(e\left(\frac{349}{410}\right)\)\(e\left(\frac{503}{820}\right)\)\(e\left(\frac{1633}{1640}\right)\)\(e\left(\frac{1007}{1640}\right)\)\(e\left(\frac{227}{820}\right)\)\(e\left(\frac{23}{164}\right)\)\(e\left(\frac{8}{205}\right)\)\(e\left(\frac{419}{1640}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1681 }(17,a) \;\) at \(\;a = \) e.g. 2