Cremona's table of elliptic curves

Curve 220b1

220 = 22 · 5 · 11



Data for elliptic curve 220b1

Field Data Notes
Atkin-Lehner 2- 5- 11- Signs for the Atkin-Lehner involutions
Class 220b Isogeny class
Conductor 220 Conductor
∏ cp 2 Product of Tamagawa factors cp
deg 12 Modular degree for the optimal curve
Δ 9680 = 24 · 5 · 112 Discriminant
Eigenvalues 2-  2 5-  0 11-  0 -4 -4 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-5,2] [a1,a2,a3,a4,a6]
j 1048576/605 j-invariant
L 1.7382298305338 L(r)(E,1)/r!
Ω 3.4764596610676 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 880h1 3520c1 1980a1 1100c1 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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