Cremona's table of elliptic curves

Curve 328b1

328 = 23 · 41



Data for elliptic curve 328b1

Field Data Notes
Atkin-Lehner 2+ 41- Signs for the Atkin-Lehner involutions
Class 328b Isogeny class
Conductor 328 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 24 Modular degree for the optimal curve
Δ 10496 = 28 · 41 Discriminant
Eigenvalues 2+  2  2 -2  2  6 -6 -2 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-12,20] [a1,a2,a3,a4,a6]
j 810448/41 j-invariant
L 2.0037539551538 L(r)(E,1)/r!
Ω 4.0075079103075 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 656b1 2624c1 2952f1 8200k1 Quadratic twists by: -4 8 -3 5


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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