Cremona's table of elliptic curves

Curve 1540a1

1540 = 22 · 5 · 7 · 11



Data for elliptic curve 1540a1

Field Data Notes
Atkin-Lehner 2- 5- 7+ 11+ Signs for the Atkin-Lehner involutions
Class 1540a Isogeny class
Conductor 1540 Conductor
∏ cp 6 Product of Tamagawa factors cp
deg 96 Modular degree for the optimal curve
Δ -67760 = -1 · 24 · 5 · 7 · 112 Discriminant
Eigenvalues 2-  0 5- 7+ 11+  2 -6  4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,8,9] [a1,a2,a3,a4,a6]
Generators [0:3:1] Generators of the group modulo torsion
j 3538944/4235 j-invariant
L 2.8083697985972 L(r)(E,1)/r!
Ω 2.3235731242982 Real period
R 0.80576182983852 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 6160q1 24640f1 13860k1 7700g1 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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