Cremona's table of elliptic curves

Curve 328a1

328 = 23 · 41



Data for elliptic curve 328a1

Field Data Notes
Atkin-Lehner 2+ 41+ Signs for the Atkin-Lehner involutions
Class 328a Isogeny class
Conductor 328 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 16 Modular degree for the optimal curve
Δ 41984 = 210 · 41 Discriminant
Eigenvalues 2+  0 -2 -2  0 -4 -2  4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-11,-10] [a1,a2,a3,a4,a6]
Generators [-2:2:1] Generators of the group modulo torsion
j 143748/41 j-invariant
L 1.5196480442746 L(r)(E,1)/r!
Ω 2.6783928659637 Real period
R 1.1347461857339 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 656a1 2624a1 2952h1 8200f1 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
Back to Tables and computations