Cremona's table of elliptic curves

Curve 28224n2

28224 = 26 · 32 · 72



Data for elliptic curve 28224n2

Field Data Notes
Atkin-Lehner 2+ 3+ 7- Signs for the Atkin-Lehner involutions
Class 28224n Isogeny class
Conductor 28224 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ 265581311901696 = 214 · 39 · 77 Discriminant
Eigenvalues 2+ 3+  2 7- -2  2 -6 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-195804,33339600] [a1,a2,a3,a4,a6]
j 21882096/7 j-invariant
L 2.160826744448 L(r)(E,1)/r!
Ω 0.54020668611198 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 28224dt2 3528q2 28224p2 4032b2 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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