Cremona's table of elliptic curves

Curve 28665bd1

28665 = 32 · 5 · 72 · 13



Data for elliptic curve 28665bd1

Field Data Notes
Atkin-Lehner 3- 5+ 7- 13- Signs for the Atkin-Lehner involutions
Class 28665bd Isogeny class
Conductor 28665 Conductor
∏ cp 64 Product of Tamagawa factors cp
deg 331776 Modular degree for the optimal curve
Δ 113427162051999705 = 39 · 5 · 79 · 134 Discriminant
Eigenvalues  1 3- 5+ 7-  4 13-  2  0 Hecke eigenvalues for primes up to 20
Equation [1,-1,0,-450270,-115047185] [a1,a2,a3,a4,a6]
j 117713838907729/1322517105 j-invariant
L 2.9508429903336 L(r)(E,1)/r!
Ω 0.1844276868959 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 9555l1 4095m1 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
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