Cremona's table of elliptic curves

Curve 18240b2

18240 = 26 · 3 · 5 · 19



Data for elliptic curve 18240b2

Field Data Notes
Atkin-Lehner 2+ 3+ 5+ 19+ Signs for the Atkin-Lehner involutions
Class 18240b Isogeny class
Conductor 18240 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ 2994278400 = 212 · 34 · 52 · 192 Discriminant
Eigenvalues 2+ 3+ 5+  0 -4  2  2 19+ Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-361,361] [a1,a2,a3,a4,a6]
Generators [-17:36:1] Generators of the group modulo torsion
j 1273760704/731025 j-invariant
L 3.6430802202904 L(r)(E,1)/r!
Ω 1.2179817106689 Real period
R 1.4955397886434 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 18240bg2 9120j1 54720bo2 91200co2 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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