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	1680d	Isogeny class
Conductor	1680	Conductor
∏ cp	32	Product of Tamagawa factors cp
Δ	-885473433600 = -1 · 211 · 3 · 52 · 78	Discriminant
Eigenvalues	2+ 3+ 5- 7- -4 -2  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,2400,-2400]	[a1,a2,a3,a4,a6]
Generators	[10:150:1]	Generators of the group modulo torsion
j	746185003198/432360075	j-invariant
L	2.620533935913	L(r)(E,1)/r!
Ω	0.5272928121059	Real period
R	2.484894422747	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	840j6 6720ca6 5040l6 8400w6	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1680d6

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

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Quadratic twists for elliptic curve 1680d6

-4	8	-3	5	-7
840j6	6720ca6	5040l6	8400w6	11760y6

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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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