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	1680h	Isogeny class
Conductor	1680	Conductor
∏ cp	256	Product of Tamagawa factors cp
Δ	205752960000 = 210 · 38 · 54 · 72	Discriminant
Eigenvalues	2+ 3- 5- 7+ -4 -2 -6 -4	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-1720,16100]	[a1,a2,a3,a4,a6]
Generators	[-40:150:1]	Generators of the group modulo torsion
j	549871953124/200930625	j-invariant
L	3.3091374215921	L(r)(E,1)/r!
Ω	0.91680824905271	Real period
R	0.90235265253427	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	8	Number of elements in the torsion subgroup
Twists	840g3 6720bh3 5040i3 8400j3	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1680h3

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

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Quadratic twists for elliptic curve 1680h3

-4	8	-3	5	-7
840g3	6720bh3	5040i3	8400j3	11760f3

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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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