Cremona's table of elliptic curves

Curve 399a1

399 = 3 · 7 · 19



Data for elliptic curve 399a1

Field Data Notes
Atkin-Lehner 3+ 7+ 19+ Signs for the Atkin-Lehner involutions
Class 399a Isogeny class
Conductor 399 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 120 Modular degree for the optimal curve
Δ 543185433 = 35 · 76 · 19 Discriminant
Eigenvalues  1 3+  0 7+ -2 -4 -4 19+ Hecke eigenvalues for primes up to 20
Equation [1,1,0,-210,-441] [a1,a2,a3,a4,a6]
Generators [-10:33:1] Generators of the group modulo torsion
j 1031831907625/543185433 j-invariant
L 1.8881722279102 L(r)(E,1)/r!
Ω 1.3293482923248 Real period
R 2.8407487169643 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 6384be1 25536bg1 1197d1 9975p1 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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