Cremona's table of elliptic curves

Curve 69440bt1

69440 = 26 · 5 · 7 · 31



Data for elliptic curve 69440bt1

Field Data Notes
Atkin-Lehner 2+ 5- 7- 31+ Signs for the Atkin-Lehner involutions
Class 69440bt Isogeny class
Conductor 69440 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 27648 Modular degree for the optimal curve
Δ 2275409920 = 221 · 5 · 7 · 31 Discriminant
Eigenvalues 2+ -1 5- 7-  5  5  0 -1 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-385,-1663] [a1,a2,a3,a4,a6]
Generators [-8:29:1] Generators of the group modulo torsion
j 24137569/8680 j-invariant
L 6.4991150178456 L(r)(E,1)/r!
Ω 1.1097605617127 Real period
R 2.9281609217185 Regulator
r 1 Rank of the group of rational points
S 0.99999999989269 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 69440di1 2170k1 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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