Cremona's table of elliptic curves

5239 = 13² · 31

Field	Data	Notes
Atkin-Lehner	13- 31+	Signs for the Atkin-Lehner involutions
Class	5239c	Isogeny class
Conductor	5239	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	504	Modular degree for the optimal curve
Δ	-68107 = -1 · 133 · 31	Discriminant
Eigenvalues	0  2  4  2 -1 13-  2 -2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,1,9,-11]	[a1,a2,a3,a4,a6]
j	32768/31	j-invariant
L	3.7968222571388	L(r)(E,1)/r!
Ω	1.8984111285694	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	83824bj1 47151e1 5239d1	Quadratic twists by: -4 -3 13

Hecke Eigenvalues for elliptic curve 5239c1

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	4	2	-1	-	2	-2	4	8	+	3	-4	-4	2	-4	-6	10	16	-6	7	-16	12	15	2

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Quadratic twists for elliptic curve 5239c1

-4	-3	13
83824bj1	47151e1	5239d1

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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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