Cremona's table of elliptic curves

1209 = 3 · 13 · 31

Field	Data	Notes
Atkin-Lehner	3- 13- 31+	Signs for the Atkin-Lehner involutions
Class	1209b	Isogeny class
Conductor	1209	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	64	Modular degree for the optimal curve
Δ	-32643 = -1 · 34 · 13 · 31	Discriminant
Eigenvalues	0 3-  0 -2  1 13- -4  0	Hecke eigenvalues for primes up to 20
Equation	[0,1,1,-13,16]	[a1,a2,a3,a4,a6]
Generators	[2:1:1]	Generators of the group modulo torsion
j	-262144000/32643	j-invariant
L	2.5337776516054	L(r)(E,1)/r!
Ω	3.5843944209849	Real period
R	0.17672285426872	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	19344p1 77376a1 3627a1 30225a1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1209b1

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	-	0	-2	1	-	-4	0	0	-6	+	-11	-2	4	-8	-4	-10	0	6	14	1	-14	-4	1	8

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Quadratic twists for elliptic curve 1209b1

-4	8	-3	5	-7	13	-31
19344p1	77376a1	3627a1	30225a1	59241g1	15717b1	37479a1

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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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