Cremona's table of elliptic curves

Curve 15642a1

15642 = 2 · 32 · 11 · 79



Data for elliptic curve 15642a1

Field Data Notes
Atkin-Lehner 2+ 3+ 11+ 79- Signs for the Atkin-Lehner involutions
Class 15642a Isogeny class
Conductor 15642 Conductor
∏ cp 8 Product of Tamagawa factors cp
deg 56640 Modular degree for the optimal curve
Δ 1383687816192 = 210 · 39 · 11 · 792 Discriminant
Eigenvalues 2+ 3+ -2  4 11+  4  2 -2 Hecke eigenvalues for primes up to 20
Equation [1,-1,0,-38328,2897216] [a1,a2,a3,a4,a6]
j 316364152169619/70298624 j-invariant
L 1.6638728010454 L(r)(E,1)/r!
Ω 0.83193640052269 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 125136k1 15642f1 Quadratic twists by: -4 -3


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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