Cremona's table of elliptic curves

Curve 28120a1

28120 = 23 · 5 · 19 · 37



Data for elliptic curve 28120a1

Field Data Notes
Atkin-Lehner 2+ 5+ 19- 37- Signs for the Atkin-Lehner involutions
Class 28120a Isogeny class
Conductor 28120 Conductor
∏ cp 32 Product of Tamagawa factors cp
deg 146432 Modular degree for the optimal curve
Δ 30860012800 = 28 · 52 · 194 · 37 Discriminant
Eigenvalues 2+  1 5+  3 -3  4  0 19- Hecke eigenvalues for primes up to 20
Equation [0,1,0,-892001,323964899] [a1,a2,a3,a4,a6]
Generators [527:722:1] Generators of the group modulo torsion
j 306605723325447169024/120546925 j-invariant
L 6.610754977178 L(r)(E,1)/r!
Ω 0.70624537344561 Real period
R 0.29251319839297 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 56240a1 Quadratic twists by: -4


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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