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
Conductor	1680	Conductor
Count	4	Number of curves in isogeny class
Curves	1680i1 1680i2 1680i3 1680i4	Curves in isogeny class
deg	128	Modular degree for the optimal curve
Eigenvalues	2+ 3- 5- 7-  0  2  2  0	Hecke eigenvalues for primes less than 20
L	2.5591287035898	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	840c 6720bl 5040k 8400a	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 1680i

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	2	2	0	0	6	-4	-2	10	-4	0	2	-4	6	12	-12	-2	0	-4	10	-2

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Quadratic twists for isogeny class 1680i

-4	8	-3	5	-7
840c	6720bl	5040k	8400a	11760c

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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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