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	20880k	Isogeny class
Conductor	20880	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	9216	Modular degree for the optimal curve
Δ	-228322800 = -1 · 24 · 39 · 52 · 29	Discriminant
Eigenvalues	2+ 3- 5+  3  5 -5  3  8	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-3,-727]	[a1,a2,a3,a4,a6]
j	-256/19575	j-invariant
L	3.2273639141287	L(r)(E,1)/r!
Ω	0.80684097853219	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	10440e1 83520gj1 6960k1 104400v1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20880k1

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	5	-5	3	8	4	+	4	4	10	10	-5	-8	8	-10	13	14	-12	4	16	-1	-16

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Quadratic twists for elliptic curve 20880k1

-4	8	-3	5
10440e1	83520gj1	6960k1	104400v1

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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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