Cremona's table of elliptic curves

20280 = 2³ · 3 · 5 · 13²

Field	Data	Notes
Atkin-Lehner	2+ 3- 5- 13-	Signs for the Atkin-Lehner involutions
Conductor	20280	Conductor
Count	1	Number of curves in isogeny class
Curves	20280n1	Curves in isogeny class
deg	224640	Modular degree for the optimal curve
Eigenvalues	2+ 3- 5-  3 -3 13-  1  8	Hecke eigenvalues for primes less than 20
L	4.13318334676	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	40560n 60840bo 101400ck 20280ba	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for isogeny class 20280n

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
+	-	-	3	-3	-	1	8	-3	6	10	1	-5	-6	8	5	-4	13	8	-11	2	-5	6	-15	-5

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Quadratic twists for isogeny class 20280n

-4	-3	5	13
40560n	60840bo	101400ck	20280ba

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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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