Cremona's table of elliptic curves

2665 = 5 · 13 · 41

Field	Data	Notes
Atkin-Lehner	5+ 13+ 41-	Signs for the Atkin-Lehner involutions
Class	2665a	Isogeny class
Conductor	2665	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	-7102225 = -1 · 52 · 132 · 412	Discriminant
Eigenvalues	1  0 5+  2  0 13+  2  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-50,-175]	[a1,a2,a3,a4,a6]
j	-13980103929/7102225	j-invariant
L	1.7516329681361	L(r)(E,1)/r!
Ω	0.87581648406803	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	42640e2 23985m2 13325f2 34645k2	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 2665a2

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	0	+	2	0	+	2	4	-2	-6	6	6	-	-6	6	10	14	2	-6	8	10	-10	4	6	18

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Quadratic twists for elliptic curve 2665a2

-4	-3	5	13	41
42640e2	23985m2	13325f2	34645k2	109265c2

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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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