Cremona's table of elliptic curves

Curve 28224bi1

28224 = 26 · 32 · 72



Data for elliptic curve 28224bi1

Field Data Notes
Atkin-Lehner 2+ 3- 7- Signs for the Atkin-Lehner involutions
Class 28224bi Isogeny class
Conductor 28224 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 73728 Modular degree for the optimal curve
Δ -629526072655872 = -1 · 220 · 36 · 77 Discriminant
Eigenvalues 2+ 3-  0 7-  0 -4  6  2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-14700,1388464] [a1,a2,a3,a4,a6]
Generators [-90:1408:1] Generators of the group modulo torsion
j -15625/28 j-invariant
L 5.3610758620845 L(r)(E,1)/r!
Ω 0.45859155186235 Real period
R 2.9225766590734 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 28224fc1 882i1 3136k1 4032l1 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.

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