Cremona's table of elliptic curves

Curve 28556a1

28556 = 22 · 112 · 59



Data for elliptic curve 28556a1

Field Data Notes
Atkin-Lehner 2- 11- 59+ Signs for the Atkin-Lehner involutions
Class 28556a Isogeny class
Conductor 28556 Conductor
∏ cp 24 Product of Tamagawa factors cp
deg 26640 Modular degree for the optimal curve
Δ -1085357476016 = -1 · 24 · 117 · 592 Discriminant
Eigenvalues 2-  0 -2 -2 11-  0  2  2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-1936,-59895] [a1,a2,a3,a4,a6]
Generators [154:1815:1] Generators of the group modulo torsion
j -28311552/38291 j-invariant
L 3.5987962311918 L(r)(E,1)/r!
Ω 0.34278944065334 Real period
R 1.7497603506167 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 114224q1 2596a1 Quadratic twists by: -4 -11


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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