Cremona's table of elliptic curves

Curve 19890x2

19890 = 2 · 32 · 5 · 13 · 17



Data for elliptic curve 19890x2

Field Data Notes
Atkin-Lehner 2- 3- 5+ 13- 17- Signs for the Atkin-Lehner involutions
Class 19890x Isogeny class
Conductor 19890 Conductor
∏ cp 112 Product of Tamagawa factors cp
Δ -5.6155045415625E+20 Discriminant
Eigenvalues 2- 3- 5+  0 -2 13- 17- -4 Hecke eigenvalues for primes up to 20
Equation [1,-1,1,-3954308,3235202727] [a1,a2,a3,a4,a6]
Generators [785:24393:1] Generators of the group modulo torsion
j -9380102000370554601721/770302406250000000 j-invariant
L 7.1269407420934 L(r)(E,1)/r!
Ω 0.16053020933343 Real period
R 1.5855806766141 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 6630f2 99450m2 Quadratic twists by: -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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