Cremona's table of elliptic curves

43808 = 2⁵ · 37²

Field	Data	Notes
Atkin-Lehner	2- 37+	Signs for the Atkin-Lehner involutions
Class	43808l	Isogeny class
Conductor	43808	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	87552	Modular degree for the optimal curve
Δ	388840968736768 = 212 · 377	Discriminant
Eigenvalues	2-  1  0 -1 -1  2  4  6	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-18253,-36101]	[a1,a2,a3,a4,a6]
j	64000/37	j-invariant
L	1.7972601158171	L(r)(E,1)/r!
Ω	0.44931502897682	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	43808m1 87616bc1 1184b1	Quadratic twists by: -4 8 37

Hecke Eigenvalues for elliptic curve 43808l1

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
-	1	0	-1	-1	2	4	6	-2	0	-8	+	-5	-10	-13	5	-2	6	4	13	-5	-4	1	14	2

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Quadratic twists for elliptic curve 43808l1

-4	8	37
43808m1	87616bc1	1184b1

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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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