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	20240q	Isogeny class
Conductor	20240	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	-1303868896000 = -1 · 28 · 53 · 116 · 23	Discriminant
Eigenvalues	2-  2 5+  1 11- -4  3 -2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-1661,61361]	[a1,a2,a3,a4,a6]
Generators	[85:726:1]	Generators of the group modulo torsion
j	-1980861374464/5093237875	j-invariant
L	6.9472085865197	L(r)(E,1)/r!
Ω	0.75900842985849	Real period
R	0.76275048616335	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	5060b2 80960by2 101200by2	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 20240q2

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	+	1	-	-4	3	-2	+	-3	-5	5	3	4	12	9	-9	8	-5	-15	-4	-2	9	0	14

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Quadratic twists for elliptic curve 20240q2

-4	8	5
5060b2	80960by2	101200by2

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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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