Cremona's table of elliptic curves

Class 21658bc

21658 = 2 · 72 · 13 · 17



Data for isogeny class 21658bc

Field Data Notes
Atkin-Lehner 2- 7- 13- 17- Signs for the Atkin-Lehner involutions
Conductor 21658 Conductor
Count 2 Number of curves in isogeny class
Curves 21658bc1 21658bc2 Curves in isogeny class
deg 27648 Modular degree for the optimal curve
Eigenvalues 2-  0 -2 7- -2 13- 17-  0 Hecke eigenvalues for primes less than 20
L 6.2929157293328 L(r)(E,1)/r!
r 1 Rank of the group of rational points
Twists 442a Quadratic twists by: -7


Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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