Cremona's table of elliptic curves

Curve 18240i1

18240 = 26 · 3 · 5 · 19



Data for elliptic curve 18240i1

Field Data Notes
Atkin-Lehner 2+ 3+ 5+ 19- Signs for the Atkin-Lehner involutions
Class 18240i Isogeny class
Conductor 18240 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 4096 Modular degree for the optimal curve
Δ 291840 = 210 · 3 · 5 · 19 Discriminant
Eigenvalues 2+ 3+ 5+  4  0 -2  2 19- Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-381,-2739] [a1,a2,a3,a4,a6]
j 5988775936/285 j-invariant
L 2.160750379776 L(r)(E,1)/r!
Ω 1.080375189888 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 4 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 18240cl1 2280j1 54720cj1 91200eb1 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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