Cremona's table of elliptic curves

9840 = 2⁴ · 3 · 5 · 41

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5+ 41+	Signs for the Atkin-Lehner involutions
Class	9840a	Isogeny class
Conductor	9840	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	3328	Modular degree for the optimal curve
Δ	-19680000 = -1 · 28 · 3 · 54 · 41	Discriminant
Eigenvalues	2+ 3+ 5+  4 -3 -4  7  2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-81,381]	[a1,a2,a3,a4,a6]
Generators	[-4:25:1]	Generators of the group modulo torsion
j	-232428544/76875	j-invariant
L	3.8529463330236	L(r)(E,1)/r!
Ω	2.0455735754926	Real period
R	0.94177652155476	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	4920h1 39360cw1 29520t1 49200y1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 9840a1

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	-3	-4	7	2	-8	-3	7	-7	+	11	-9	-6	-4	1	2	1	9	2	6	-6	-14

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Quadratic twists for elliptic curve 9840a1

-4	8	-3	5
4920h1	39360cw1	29520t1	49200y1

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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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