Field | Data | Notes |
---|---|---|
Atkin-Lehner | 3- 71- | Signs for the Atkin-Lehner involutions |
Conductor | 639 | Conductor |
Count | 2 | Number of curves in isogeny class |
Curves | 639a1 639a2 | Curves in isogeny class |
deg | 48 | Modular degree for the optimal curve |
Eigenvalues | -1 3- -2 2 0 -2 0 0 | Hecke eigenvalues for primes less than 20 |
L | 1.3874418665602 | L(r)(E,1)/r! |
r | 1 | Rank of the group of rational points |
Twists | 10224o 40896w 213a 15975m | Quadratic twists by: -4 8 -3 5 |