Cremona's table of elliptic curves

Curve 28704j1

28704 = 25 · 3 · 13 · 23



Data for elliptic curve 28704j1

Field Data Notes
Atkin-Lehner 2+ 3- 13- 23+ Signs for the Atkin-Lehner involutions
Class 28704j Isogeny class
Conductor 28704 Conductor
∏ cp 48 Product of Tamagawa factors cp
deg 24576 Modular degree for the optimal curve
Δ -30648466368 = -1 · 26 · 36 · 134 · 23 Discriminant
Eigenvalues 2+ 3- -2  2 -2 13-  4  4 Hecke eigenvalues for primes up to 20
Equation [0,1,0,-3034,63872] [a1,a2,a3,a4,a6]
Generators [14:156:1] Generators of the group modulo torsion
j -48276258286528/478882287 j-invariant
L 6.3952778504294 L(r)(E,1)/r!
Ω 1.1795419115254 Real period
R 0.45181931702613 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 28704p1 57408g1 86112bo1 Quadratic twists by: -4 8 -3


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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