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
Class	20280f	Isogeny class
Conductor	20280	Conductor
∏ cp	16	Product of Tamagawa factors cp
deg	112896	Modular degree for the optimal curve
Δ	2627045723250000 = 24 · 314 · 56 · 133	Discriminant
Eigenvalues	2+ 3+ 5+ -2  4 13- -2  6	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-58231,4833100]	[a1,a2,a3,a4,a6]
j	621217777580032/74733890625	j-invariant
L	1.7606017262576	L(r)(E,1)/r!
Ω	0.44015043156441	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	40560v1 60840cc1 101400dn1 20280v1	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 20280f1

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

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Quadratic twists for elliptic curve 20280f1

-4	-3	5	13
40560v1	60840cc1	101400dn1	20280v1

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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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