Cremona's table of elliptic curves

1680 = 2⁴ · 3 · 5 · 7

Field	Data	Notes
Atkin-Lehner	2- 3- 5- 7+	Signs for the Atkin-Lehner involutions
Class	1680t	Isogeny class
Conductor	1680	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	768	Modular degree for the optimal curve
Δ	-770703360 = -1 · 220 · 3 · 5 · 72	Discriminant
Eigenvalues	2- 3- 5- 7+ -4 -2  2  4	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,160,1140]	[a1,a2,a3,a4,a6]
j	109902239/188160	j-invariant
L	2.1854884692782	L(r)(E,1)/r!
Ω	1.0927442346391	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	210c1 6720bg1 5040bg1 8400bp1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1680t1

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
-	-	-	+	-4	-2	2	4	8	6	8	-2	2	12	8	6	-4	-2	-12	-8	-14	0	-12	2	10

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Quadratic twists for elliptic curve 1680t1

-4	8	-3	5	-7
210c1	6720bg1	5040bg1	8400bp1	11760br1

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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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