Cremona's table of elliptic curves

1989 = 3² · 13 · 17

Field	Data	Notes
Atkin-Lehner	3- 13+ 17+	Signs for the Atkin-Lehner involutions
Class	1989b	Isogeny class
Conductor	1989	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	462866157 = 36 · 133 · 172	Discriminant
Eigenvalues	1 3- -4 -2 -6 13+ 17+  8	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-105459,-13155436]	[a1,a2,a3,a4,a6]
j	177930109857804849/634933	j-invariant
L	0.52985671811654	L(r)(E,1)/r!
Ω	0.26492835905827	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	31824ba2 127296bf2 221a2 49725s2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1989b2

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

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Quadratic twists for elliptic curve 1989b2

-4	8	-3	5	-7	13	17
31824ba2	127296bf2	221a2	49725s2	97461w2	25857j2	33813i2

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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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