Cremona's table of elliptic curves

Curve 91840x2

91840 = 26 · 5 · 7 · 41



Data for elliptic curve 91840x2

Field Data Notes
Atkin-Lehner 2- 5+ 7+ 41+ Signs for the Atkin-Lehner involutions
Class 91840x Isogeny class
Conductor 91840 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ -33738342400 = -1 · 214 · 52 · 72 · 412 Discriminant
Eigenvalues 2-  0 5+ 7+ -2 -2  2 -6 Hecke eigenvalues for primes up to 20
Equation [0,0,0,772,3152] [a1,a2,a3,a4,a6]
Generators [-2:40:1] [16:140:1] Generators of the group modulo torsion
j 3105672624/2059225 j-invariant
L 9.5330148887152 L(r)(E,1)/r!
Ω 0.73057958301071 Real period
R 1.631070575753 Regulator
r 2 Rank of the group of rational points
S 0.99999999999561 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 91840h2 22960n2 Quadratic twists by: -4 8


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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