Properties

Label 1680.269
Modulus $1680$
Conductor $1680$
Order $12$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1680, base_ring=CyclotomicField(12))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,9,6,6,2]))
 
pari: [g,chi] = znchar(Mod(269,1680))
 

Basic properties

Modulus: \(1680\)
Conductor: \(1680\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(12\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1680.fl

\(\chi_{1680}(269,\cdot)\) \(\chi_{1680}(509,\cdot)\) \(\chi_{1680}(1109,\cdot)\) \(\chi_{1680}(1349,\cdot)\)

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: \(\Q(\zeta_{12})\)
Fixed field: 12.12.27638712693883404288000000.1

Values on generators

\((1471,421,1121,337,241)\) → \((1,-i,-1,-1,e\left(\frac{1}{6}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 1680 }(269, a) \) \(1\)\(1\)\(e\left(\frac{11}{12}\right)\)\(i\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{1}{12}\right)\)\(e\left(\frac{5}{6}\right)\)\(-i\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{7}{12}\right)\)\(-1\)\(i\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1680 }(269,a) \;\) at \(\;a = \) e.g. 2