Cremona's table of elliptic curves

7581 = 3 · 7 · 19²

Field	Data	Notes
Atkin-Lehner	3+ 7+ 19+	Signs for the Atkin-Lehner involutions
Class	7581a	Isogeny class
Conductor	7581	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	45600	Modular degree for the optimal curve
Δ	426915824161617 = 33 · 72 · 199	Discriminant
Eigenvalues	1 3+ -4 7+ -4  2  0 19+	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-19862,-423825]	[a1,a2,a3,a4,a6]
Generators	[27586:4568019:1]	Generators of the group modulo torsion
j	2685619/1323	j-invariant
L	2.4574872139054	L(r)(E,1)/r!
Ω	0.42290088062377	Real period
R	5.8110241110888	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	121296da1 22743l1 53067n1 7581d1	Quadratic twists by: -4 -3 -7 -19

Hecke Eigenvalues for elliptic curve 7581a1

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
1	+	-4	+	-4	2	0	+	-4	10	8	-8	6	-4	-6	2	-4	-10	2	12	2	14	6	10	14

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Quadratic twists for elliptic curve 7581a1

-4	-3	-7	-19
121296da1	22743l1	53067n1	7581d1

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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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