Cremona's table of elliptic curves

240 = 2⁴ · 3 · 5

Field	Data	Notes
Atkin-Lehner	2- 3- 5-	Signs for the Atkin-Lehner involutions
Conductor	240	Conductor
Count	8	Number of curves in isogeny class
Curves	240d1 240d2 240d3 240d4 240d5 240d6 240d7 240d8	Curves in isogeny class
deg	16	Modular degree for the optimal curve
Eigenvalues	2- 3- 5-  0  4 -2  2 -4	Hecke eigenvalues for primes less than 20
L	1.5962422221318	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	15a 960i 720h 1200j	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 240d

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

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Quadratic twists for isogeny class 240d

-4	8	-3	5	-7	-11	13	17	-19	-23
15a	960i	720h	1200j	11760bq	29040dg	40560ca	69360cc	86640cm	126960cj

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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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