Cremona's table of elliptic curves

Curve 28224ci2

28224 = 26 · 32 · 72



Data for elliptic curve 28224ci2

Field Data Notes
Atkin-Lehner 2+ 3- 7- Signs for the Atkin-Lehner involutions
Class 28224ci Isogeny class
Conductor 28224 Conductor
∏ cp 64 Product of Tamagawa factors cp
Δ 3161682284544 = 212 · 38 · 76 Discriminant
Eigenvalues 2+ 3- -2 7-  4 -2 -6 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-4116,54880] [a1,a2,a3,a4,a6]
Generators [-42:392:1] Generators of the group modulo torsion
j 21952/9 j-invariant
L 4.3644969502043 L(r)(E,1)/r!
Ω 0.72301617278689 Real period
R 1.5091283965963 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 28224cl2 14112ca1 9408bg2 576c2 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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