Cremona's table of elliptic curves

Curve 28224cd1

28224 = 26 · 32 · 72



Data for elliptic curve 28224cd1

Field Data Notes
Atkin-Lehner 2+ 3- 7- Signs for the Atkin-Lehner involutions
Class 28224cd Isogeny class
Conductor 28224 Conductor
∏ cp 32 Product of Tamagawa factors cp
deg 49152 Modular degree for the optimal curve
Δ 1844314665984 = 210 · 37 · 77 Discriminant
Eigenvalues 2+ 3- -2 7-  0 -2  6 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-12936,-562520] [a1,a2,a3,a4,a6]
Generators [-63:49:1] Generators of the group modulo torsion
j 2725888/21 j-invariant
L 4.6132662880026 L(r)(E,1)/r!
Ω 0.44786929087014 Real period
R 1.2875593342869 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 28224ga1 3528x1 9408bd1 4032f1 Quadratic twists by: -4 8 -3 -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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