Cremona's table of elliptic curves

Curve 28665w1

28665 = 32 · 5 · 72 · 13



Data for elliptic curve 28665w1

Field Data Notes
Atkin-Lehner 3- 5+ 7- 13+ Signs for the Atkin-Lehner involutions
Class 28665w Isogeny class
Conductor 28665 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 4416 Modular degree for the optimal curve
Δ -6965595 = -1 · 37 · 5 · 72 · 13 Discriminant
Eigenvalues  0 3- 5+ 7- -1 13+ -6  2 Hecke eigenvalues for primes up to 20
Equation [0,0,1,42,-72] [a1,a2,a3,a4,a6]
Generators [2:4:1] Generators of the group modulo torsion
j 229376/195 j-invariant
L 3.2158306184707 L(r)(E,1)/r!
Ω 1.3035922900069 Real period
R 0.61672476953161 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 9555t1 28665bk1 Quadratic twists by: -3 -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
Back to Tables and computations