Cremona's table of elliptic curves

Curve 15680bs1

15680 = 26 · 5 · 72



Data for elliptic curve 15680bs1

Field Data Notes
Atkin-Lehner 2+ 5- 7- Signs for the Atkin-Lehner involutions
Class 15680bs Isogeny class
Conductor 15680 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 6144 Modular degree for the optimal curve
Δ -28098560 = -1 · 214 · 5 · 73 Discriminant
Eigenvalues 2+ -1 5- 7-  5 -7 -3  2 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-485,4285] [a1,a2,a3,a4,a6]
Generators [12:7:1] Generators of the group modulo torsion
j -2249728/5 j-invariant
L 4.137546227558 L(r)(E,1)/r!
Ω 2.1072394024471 Real period
R 0.98174564853741 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 15680do1 1960j1 78400bj1 15680l1 Quadratic twists by: -4 8 5 -7


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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