Cremona's table of elliptic curves

Curve 20128i1

20128 = 25 · 17 · 37



Data for elliptic curve 20128i1

Field Data Notes
Atkin-Lehner 2- 17- 37+ Signs for the Atkin-Lehner involutions
Class 20128i Isogeny class
Conductor 20128 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 1824 Modular degree for the optimal curve
Δ -322048 = -1 · 29 · 17 · 37 Discriminant
Eigenvalues 2- -2 -2  3 -2  3 17-  4 Hecke eigenvalues for primes up to 20
Equation [0,1,0,16,-8] [a1,a2,a3,a4,a6]
Generators [2:6:1] Generators of the group modulo torsion
j 830584/629 j-invariant
L 3.30434334453 L(r)(E,1)/r!
Ω 1.7052902657828 Real period
R 0.96885070267294 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 20128d1 40256q1 Quadratic twists by: -4 8


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

Part of Computational Number Theory
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