Cremona's table of elliptic curves

Curve 28665be3

28665 = 32 · 5 · 72 · 13



Data for elliptic curve 28665be3

Field Data Notes
Atkin-Lehner 3- 5+ 7- 13- Signs for the Atkin-Lehner involutions
Class 28665be Isogeny class
Conductor 28665 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ -1905448489013671875 = -1 · 36 · 512 · 77 · 13 Discriminant
Eigenvalues -1 3- 5+ 7-  0 13- -2  4 Hecke eigenvalues for primes up to 20
Equation [1,-1,1,70477,-66039578] [a1,a2,a3,a4,a6]
j 451394172711/22216796875 j-invariant
L 1.0081992565185 L(r)(E,1)/r!
Ω 0.12602490706483 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 4 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 3185h4 4095j4 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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