Atkin-Lehner |
2+ 3- 13+ 17+ |
Signs for the Atkin-Lehner involutions |
Class |
21216f |
Isogeny class |
Conductor |
21216 |
Conductor |
∏ cp |
16 |
Product of Tamagawa factors cp |
deg |
18432 |
Modular degree for the optimal curve |
Δ |
2517023808 = 26 · 34 · 134 · 17 |
Discriminant |
Eigenvalues |
2+ 3- 4 -2 4 13+ 17+ 4 |
Hecke eigenvalues for primes up to 20 |
Equation |
[0,1,0,-346,-688] |
[a1,a2,a3,a4,a6] |
j |
71783828416/39328497 |
j-invariant |
L |
4.7300369834161 |
L(r)(E,1)/r! |
Ω |
1.182509245854 |
Real period |
R |
1 |
Regulator |
r |
0 |
Rank of the group of rational points |
S |
1 |
(Analytic) order of Ш |
t |
2 |
Number of elements in the torsion subgroup |
Twists |
21216j1 42432i1 63648s1 |
Quadratic twists by: -4 8 -3 |