Cremona's table of elliptic curves

Curve 128440l1

128440 = 23 · 5 · 132 · 19



Data for elliptic curve 128440l1

Field Data Notes
Atkin-Lehner 2- 5+ 13+ 19+ Signs for the Atkin-Lehner involutions
Class 128440l Isogeny class
Conductor 128440 Conductor
∏ cp 12 Product of Tamagawa factors cp
deg 449280 Modular degree for the optimal curve
Δ -7161724179633920 = -1 · 28 · 5 · 138 · 193 Discriminant
Eigenvalues 2- -1 5+  0 -3 13+  0 19+ Hecke eigenvalues for primes up to 20
Equation [0,-1,0,16844,3978116] [a1,a2,a3,a4,a6]
Generators [-122:304:1] [-56:1690:1] Generators of the group modulo torsion
j 2530736/34295 j-invariant
L 9.0540916000931 L(r)(E,1)/r!
Ω 0.31037007244995 Real period
R 2.4309935128977 Regulator
r 2 Rank of the group of rational points
S 1.0000000008187 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 128440j1 Quadratic twists by: 13


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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