Cremona's table of elliptic curves

20880 = 2⁴ · 3² · 5 · 29

Field	Data	Notes
Atkin-Lehner	2+ 3- 5+ 29+	Signs for the Atkin-Lehner involutions
Class	20880i	Isogeny class
Conductor	20880	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	-1.5285357646707E+20	Discriminant
Eigenvalues	2+ 3- 5+  0 -4 -2  6 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-1455123,900155522]	[a1,a2,a3,a4,a6]
j	-456452240483695684/204761413948725	j-invariant
L	0.6830859674971	L(r)(E,1)/r!
Ω	0.17077149187428	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	10440d4 83520gf3 6960j4 104400m3	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20880i4

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	6	-4	-8	+	-8	-2	-2	4	-8	10	-4	-10	4	8	-6	-8	4	14	2

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Quadratic twists for elliptic curve 20880i4

-4	8	-3	5
10440d4	83520gf3	6960j4	104400m3

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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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