Cremona's table of elliptic curves

20240 = 2⁴ · 5 · 11 · 23

Field	Data	Notes
Atkin-Lehner	2- 5- 11- 23+	Signs for the Atkin-Lehner involutions
Class	20240x	Isogeny class
Conductor	20240	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	5440	Modular degree for the optimal curve
Δ	-56995840 = -1 · 212 · 5 · 112 · 23	Discriminant
Eigenvalues	2-  2 5- -3 11-  0 -3  6	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-5,365]	[a1,a2,a3,a4,a6]
j	-4096/13915	j-invariant
L	3.1834429139965	L(r)(E,1)/r!
Ω	1.5917214569983	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	1265a1 80960bi1 101200bz1	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 20240x1

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	-	-3	-	0	-3	6	+	9	9	-1	-5	-4	-8	-5	1	-4	11	3	4	10	-7	12	2

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Quadratic twists for elliptic curve 20240x1

-4	8	5
1265a1	80960bi1	101200bz1

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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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