Cremona's table of elliptic curves

Curve 91840bd1

91840 = 26 · 5 · 7 · 41



Data for elliptic curve 91840bd1

Field Data Notes
Atkin-Lehner 2- 5+ 7- 41+ Signs for the Atkin-Lehner involutions
Class 91840bd Isogeny class
Conductor 91840 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 84992 Modular degree for the optimal curve
Δ -963952640 = -1 · 214 · 5 · 7 · 412 Discriminant
Eigenvalues 2- -3 5+ 7- -3  5 -7  2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-208,1888] [a1,a2,a3,a4,a6]
Generators [1:41:1] Generators of the group modulo torsion
j -60742656/58835 j-invariant
L 3.0210873365805 L(r)(E,1)/r!
Ω 1.4279117449171 Real period
R 1.0578690701777 Regulator
r 1 Rank of the group of rational points
S 0.99999999894012 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 91840c1 22960g1 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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