Cremona's table of elliptic curves

Curve 1885b2

1885 = 5 · 13 · 29



Data for elliptic curve 1885b2

Field Data Notes
Atkin-Lehner 5+ 13+ 29+ Signs for the Atkin-Lehner involutions
Class 1885b Isogeny class
Conductor 1885 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ -1867663890625 = -1 · 56 · 132 · 294 Discriminant
Eigenvalues -1  2 5+  0  2 13+ -6  2 Hecke eigenvalues for primes up to 20
Equation [1,1,1,-28466,1837888] [a1,a2,a3,a4,a6]
Generators [86:144:1] Generators of the group modulo torsion
j -2550962067330021409/1867663890625 j-invariant
L 2.504198624561 L(r)(E,1)/r!
Ω 0.8264081814817 Real period
R 1.5151100150479 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 30160q2 120640bq2 16965o2 9425e2 Quadratic twists by: -4 8 -3 5


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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