Cremona's table of elliptic curves

840 = 2³ · 3 · 5 · 7

Field	Data	Notes
Atkin-Lehner	2- 3- 5- 7+	Signs for the Atkin-Lehner involutions
Conductor	840	Conductor
Count	6	Number of curves in isogeny class
Curves	840j1 840j2 840j3 840j4 840j5 840j6	Curves in isogeny class
deg	128	Modular degree for the optimal curve
Eigenvalues	2- 3- 5- 7+  4 -2  2  4	Hecke eigenvalues for primes less than 20
L	2.128934407385	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	1680d 6720e 2520f 4200d	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 840j

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 isogeny class 840j

-4	8	-3	5	-7	-11
1680d	6720e	2520f	4200d	5880t	101640bm

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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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