Field | Data | Notes |
---|---|---|
Atkin-Lehner | 13+ 17- | Signs for the Atkin-Lehner involutions |
Conductor | 221 | Conductor |
Count | 2 | Number of curves in isogeny class |
Curves | 221b1 221b2 | Curves in isogeny class |
deg | 24 | Modular degree for the optimal curve |
Eigenvalues | 1 2 2 2 -6 13+ 17- 4 | Hecke eigenvalues for primes less than 20 |
L | 2.1761000761788 | L(r)(E,1)/r! |
r | 0 | Rank of the group of rational points |
Twists | 3536l 14144p 1989c 5525e | Quadratic twists by: -4 8 -3 5 |