Cremona's table of elliptic curves

1984 = 2⁶ · 31

Field	Data	Notes
Atkin-Lehner	2- 31-	Signs for the Atkin-Lehner involutions
Class	1984j	Isogeny class
Conductor	1984	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	1007681536 = 220 · 312	Discriminant
Eigenvalues	2-  0  2  0  0 -2 -6  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-1324,-18480]	[a1,a2,a3,a4,a6]
Generators	[37940:373920:343]	Generators of the group modulo torsion
j	979146657/3844	j-invariant
L	3.1976448954871	L(r)(E,1)/r!
Ω	0.79164434270021	Real period
R	8.0784885914305	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	1984b2 496f2 17856ce2 49600bw2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1984j2

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

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Quadratic twists for elliptic curve 1984j2

-4	8	-3	5	-7	-31
1984b2	496f2	17856ce2	49600bw2	97216bn2	61504bm2

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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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