Cremona's table of elliptic curves

Curve 87220d1

87220 = 22 · 5 · 72 · 89



Data for elliptic curve 87220d1

Field Data Notes
Atkin-Lehner 2- 5+ 7- 89- Signs for the Atkin-Lehner involutions
Class 87220d Isogeny class
Conductor 87220 Conductor
∏ cp 6 Product of Tamagawa factors cp
deg 76608 Modular degree for the optimal curve
Δ -287317681840 = -1 · 24 · 5 · 79 · 89 Discriminant
Eigenvalues 2-  0 5+ 7- -5  4 -5  1 Hecke eigenvalues for primes up to 20
Equation [0,0,0,1372,-16807] [a1,a2,a3,a4,a6]
Generators [98:-1029:1] [46:379:1] Generators of the group modulo torsion
j 442368/445 j-invariant
L 9.8417313495348 L(r)(E,1)/r!
Ω 0.52978224141695 Real period
R 3.0961561752466 Regulator
r 2 Rank of the group of rational points
S 0.9999999999736 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 87220n1 Quadratic twists by: -7


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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