Properties

Label 8640.3889
Modulus $8640$
Conductor $80$
Order $4$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8640, base_ring=CyclotomicField(4))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,1,0,2]))
 
pari: [g,chi] = znchar(Mod(3889,8640))
 

Basic properties

Modulus: \(8640\)
Conductor: \(80\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(4\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{80}(69,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8640.bm

\(\chi_{8640}(3889,\cdot)\) \(\chi_{8640}(8209,\cdot)\)

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: \(\Q(\sqrt{-1}) \)
Fixed field: 4.4.51200.1

Values on generators

\((2431,3781,6401,3457)\) → \((1,i,1,-1)\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\( \chi_{ 8640 }(3889, a) \) \(1\)\(1\)\(1\)\(i\)\(i\)\(-1\)\(-i\)\(1\)\(-i\)\(1\)\(-i\)\(-1\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8640 }(3889,a) \;\) at \(\;a = \) e.g. 2