Cremona's table of elliptic curves

Curve 18240cm1

18240 = 26 · 3 · 5 · 19



Data for elliptic curve 18240cm1

Field Data Notes
Atkin-Lehner 2- 3- 5+ 19+ Signs for the Atkin-Lehner involutions
Class 18240cm Isogeny class
Conductor 18240 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 18432 Modular degree for the optimal curve
Δ -32275169280 = -1 · 222 · 34 · 5 · 19 Discriminant
Eigenvalues 2- 3- 5+ -4 -4  2 -2 19+ Hecke eigenvalues for primes up to 20
Equation [0,1,0,-641,-10881] [a1,a2,a3,a4,a6]
Generators [37:132:1] Generators of the group modulo torsion
j -111284641/123120 j-invariant
L 4.4933584913971 L(r)(E,1)/r!
Ω 0.45463766956902 Real period
R 2.4708459022196 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 18240k1 4560u1 54720eq1 91200fm1 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.

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