Cremona's table of elliptic curves

1665 = 3² · 5 · 37

Field	Data	Notes
Atkin-Lehner	3- 5- 37+	Signs for the Atkin-Lehner involutions
Class	1665f	Isogeny class
Conductor	1665	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	-24950025 = -1 · 36 · 52 · 372	Discriminant
Eigenvalues	-1 3- 5- -2  0 -2 -2  2	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,13,236]	[a1,a2,a3,a4,a6]
Generators	[4:16:1]	Generators of the group modulo torsion
j	357911/34225	j-invariant
L	1.8869852354662	L(r)(E,1)/r!
Ω	1.6275483937348	Real period
R	0.57970172891021	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	26640bp2 106560bw2 185c2 8325w2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1665f2

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

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Quadratic twists for elliptic curve 1665f2

-4	8	-3	5	-7	37
26640bp2	106560bw2	185c2	8325w2	81585o2	61605e2

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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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