Properties

Label 2695.656
Modulus $2695$
Conductor $77$
Order $30$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2695, base_ring=CyclotomicField(30))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,25,21]))
 
pari: [g,chi] = znchar(Mod(656,2695))
 

Basic properties

Modulus: \(2695\)
Conductor: \(77\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(30\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{77}(40,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2695.by

\(\chi_{2695}(656,\cdot)\) \(\chi_{2695}(766,\cdot)\) \(\chi_{2695}(1146,\cdot)\) \(\chi_{2695}(1256,\cdot)\) \(\chi_{2695}(1636,\cdot)\) \(\chi_{2695}(1746,\cdot)\) \(\chi_{2695}(2371,\cdot)\) \(\chi_{2695}(2481,\cdot)\)

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: \(\Q(\zeta_{15})\)
Fixed field: \(\Q(\zeta_{77})^+\)

Values on generators

\((2157,1816,981)\) → \((1,e\left(\frac{5}{6}\right),e\left(\frac{7}{10}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(8\)\(9\)\(12\)\(13\)\(16\)\(17\)
\( \chi_{ 2695 }(656, a) \) \(1\)\(1\)\(e\left(\frac{11}{30}\right)\)\(e\left(\frac{13}{30}\right)\)\(e\left(\frac{11}{15}\right)\)\(e\left(\frac{4}{5}\right)\)\(e\left(\frac{1}{10}\right)\)\(e\left(\frac{13}{15}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{1}{5}\right)\)\(e\left(\frac{7}{15}\right)\)\(e\left(\frac{2}{15}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2695 }(656,a) \;\) at \(\;a = \) e.g. 2