Cremona's table of elliptic curves

690 = 2 · 3 · 5 · 23

Field	Data	Notes
Atkin-Lehner	2- 3- 5- 23+	Signs for the Atkin-Lehner involutions
Class	690k	Isogeny class
Conductor	690	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	20700 = 22 · 32 · 52 · 23	Discriminant
Eigenvalues	2- 3- 5-  0  4 -2 -6  4	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-110400,14109732]	[a1,a2,a3,a4,a6]
j	148809678420065817601/20700	j-invariant
L	3.0439311062815	L(r)(E,1)/r!
Ω	1.5219655531407	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	5520u3 22080d4 2070f3 3450d4	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 690k4

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
-	-	-	0	4	-2	-6	4	+	-2	0	-2	10	-4	0	6	-4	-10	-12	-8	10	-8	-4	18	2

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Quadratic twists for elliptic curve 690k4

-4	8	-3	5	-7	-11	13	-23
5520u3	22080d4	2070f3	3450d4	33810ca4	83490bb4	116610y4	15870bg3

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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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