Cremona's table of elliptic curves

8240 = 2⁴ · 5 · 103

Field	Data	Notes
Atkin-Lehner	2+ 5+ 103-	Signs for the Atkin-Lehner involutions
Class	8240b	Isogeny class
Conductor	8240	Conductor
∏ cp	1	Product of Tamagawa factors cp
deg	2080	Modular degree for the optimal curve
Δ	-5150000 = -1 · 24 · 55 · 103	Discriminant
Eigenvalues	2+  1 5+ -2  4  4  6  7	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-291,1820]	[a1,a2,a3,a4,a6]
j	-170912671744/321875	j-invariant
L	2.424471092414	L(r)(E,1)/r!
Ω	2.424471092414	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	4120d1 32960z1 74160s1 41200d1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 8240b1

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	+	-2	4	4	6	7	0	3	0	-10	-9	-1	-9	11	9	7	9	-10	11	-3	0	-18	16

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Quadratic twists for elliptic curve 8240b1

-4	8	-3	5
4120d1	32960z1	74160s1	41200d1

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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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