Properties

Label 1205.7
Modulus $1205$
Conductor $1205$
Order $240$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1205, base_ring=CyclotomicField(240))
 
M = H._module
 
chi = DirichletCharacter(H, M([60,1]))
 
pari: [g,chi] = znchar(Mod(7,1205))
 

Basic properties

Modulus: \(1205\)
Conductor: \(1205\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(240\)
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 1205.cr

\(\chi_{1205}(7,\cdot)\) \(\chi_{1205}(13,\cdot)\) \(\chi_{1205}(37,\cdot)\) \(\chi_{1205}(42,\cdot)\) \(\chi_{1205}(62,\cdot)\) \(\chi_{1205}(68,\cdot)\) \(\chi_{1205}(78,\cdot)\) \(\chi_{1205}(92,\cdot)\) \(\chi_{1205}(112,\cdot)\) \(\chi_{1205}(127,\cdot)\) \(\chi_{1205}(137,\cdot)\) \(\chi_{1205}(142,\cdot)\) \(\chi_{1205}(163,\cdot)\) \(\chi_{1205}(173,\cdot)\) \(\chi_{1205}(202,\cdot)\) \(\chi_{1205}(207,\cdot)\) \(\chi_{1205}(228,\cdot)\) \(\chi_{1205}(292,\cdot)\) \(\chi_{1205}(293,\cdot)\) \(\chi_{1205}(307,\cdot)\) \(\chi_{1205}(327,\cdot)\) \(\chi_{1205}(372,\cdot)\) \(\chi_{1205}(373,\cdot)\) \(\chi_{1205}(398,\cdot)\) \(\chi_{1205}(408,\cdot)\) \(\chi_{1205}(412,\cdot)\) \(\chi_{1205}(413,\cdot)\) \(\chi_{1205}(468,\cdot)\) \(\chi_{1205}(513,\cdot)\) \(\chi_{1205}(528,\cdot)\) ...

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: $\Q(\zeta_{240})$
Fixed field: Number field defined by a degree 240 polynomial (not computed)

Values on generators

\((242,971)\) → \((i,e\left(\frac{1}{240}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 1205 }(7, a) \) \(1\)\(1\)\(e\left(\frac{1}{24}\right)\)\(e\left(\frac{61}{120}\right)\)\(e\left(\frac{1}{12}\right)\)\(e\left(\frac{11}{20}\right)\)\(e\left(\frac{61}{240}\right)\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{1}{60}\right)\)\(e\left(\frac{5}{48}\right)\)\(e\left(\frac{71}{120}\right)\)\(e\left(\frac{227}{240}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1205 }(7,a) \;\) at \(\;a = \) e.g. 2