Cremona's table of elliptic curves

520 = 2³ · 5 · 13

Field	Data	Notes
Atkin-Lehner	2+ 5+ 13+	Signs for the Atkin-Lehner involutions
Class	520a	Isogeny class
Conductor	520	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	32	Modular degree for the optimal curve
Δ	16640 = 28 · 5 · 13	Discriminant
Eigenvalues	2+  0 5+  0 -4 13+ -6  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-23,42]	[a1,a2,a3,a4,a6]
Generators	[-1:8:1]	Generators of the group modulo torsion
j	5256144/65	j-invariant
L	1.8629119108572	L(r)(E,1)/r!
Ω	3.9206170977189	Real period
R	0.95031565920635	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	1040a1 4160d1 4680s1 2600j1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 520a1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
+	0	+	0	-4	+	-6	4	0	-2	-4	-6	-6	8	0	2	4	-10	12	-4	14	-16	12	2	-2

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Quadratic twists for elliptic curve 520a1

-4	8	-3	5	-7	-11	13
1040a1	4160d1	4680s1	2600j1	25480f1	62920q1	6760i1

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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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