Cremona's table of elliptic curves

Curve 800a1

800 = 25 · 52



Data for elliptic curve 800a1

Field Data Notes
Atkin-Lehner 2+ 5+ Signs for the Atkin-Lehner involutions
Class 800a Isogeny class
Conductor 800 Conductor
∏ cp 8 Product of Tamagawa factors cp
deg 64 Modular degree for the optimal curve
Δ 1000000 = 26 · 56 Discriminant
Eigenvalues 2+  0 5+  0  0 -6 -2  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-25,0] [a1,a2,a3,a4,a6]
Generators [-4:6:1] Generators of the group modulo torsion
j 1728 j-invariant
L 2.2273703795441 L(r)(E,1)/r!
Ω 2.3452395729256 Real period
R 1.8994821725318 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 800a1 1600o2 7200bg1 32a2 Quadratic twists by: -4 8 -3 5


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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