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	4	Number of curves in isogeny class
Curves	240c1 240c2 240c3 240c4	Curves in isogeny class
deg	16	Modular degree for the optimal curve
Eigenvalues	2+ 3+ 5+ -4  0 -6 -2 -4	Hecke eigenvalues for primes less than 20
L	1.2467793270684	L(r)(E,1)/r!
r	1	Rank of the group of rational points
Twists	120b 960p 720e 1200g	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 240c

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	0	-6	-2	-4	8	-6	0	-6	10	4	-8	10	0	6	4	0	-14	-16	-12	2	2

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Quadratic twists for isogeny class 240c

-4	8	-3	5	-7	-11	13	17	-19	-23
120b	960p	720e	1200g	11760bf	29040j	40560k	69360bt	86640u	126960l

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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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