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	20880bx	Isogeny class
Conductor	20880	Conductor
∏ cp	64	Product of Tamagawa factors cp
Δ	5085205401600 = 212 · 310 · 52 · 292	Discriminant
Eigenvalues	2- 3- 5+ -4 -4  6 -6  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-4683,58682]	[a1,a2,a3,a4,a6]
Generators	[-59:360:1]	Generators of the group modulo torsion
j	3803721481/1703025	j-invariant
L	3.6654424629955	L(r)(E,1)/r!
Ω	0.68877870525869	Real period
R	1.330413685488	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	1305d2 83520gp2 6960bf2 104400ee2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20880bx2

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

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Quadratic twists for elliptic curve 20880bx2

-4	8	-3	5
1305d2	83520gp2	6960bf2	104400ee2

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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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