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	8	Product of Tamagawa factors cp
Δ	-300302437500000000 = -1 · 28 · 37 · 512 · 133	Discriminant
Eigenvalues	2+ 3+ 5+ -2  4 13- -2  6	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,83924,24621076]	[a1,a2,a3,a4,a6]
j	116227003261808/533935546875	j-invariant
L	1.7606017262576	L(r)(E,1)/r!
Ω	0.2200752157822	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	40560v2 60840cc2 101400dn2 20280v2	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 20280f2

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 20280f2

-4	-3	5	13
40560v2	60840cc2	101400dn2	20280v2

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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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