Cremona's table of elliptic curves

1638 = 2 · 3² · 7 · 13

Field	Data	Notes
Atkin-Lehner	2+ 3- 7- 13+	Signs for the Atkin-Lehner involutions
Class	1638h	Isogeny class
Conductor	1638	Conductor
∏ cp	4	Product of Tamagawa factors cp
Δ	-1921234093506 = -1 · 2 · 37 · 7 · 137	Discriminant
Eigenvalues	2+ 3-  1 7- -5 13+  3 -1	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-33070464,73207840986]	[a1,a2,a3,a4,a6]
Generators	[3321:-1602:1]	Generators of the group modulo torsion
j	-5486773802537974663600129/2635437714	j-invariant
L	2.2655932961979	L(r)(E,1)/r!
Ω	0.35341951867817	Real period
R	1.6026232115529	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	13104bq2 52416cz2 546f2 40950ea2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1638h2

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	-	-5	+	3	-1	-3	-9	4	-11	0	-5	8	2	-4	-15	-2	12	11	10	14	-6	-14

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Quadratic twists for elliptic curve 1638h2

-4	8	-3	5	-7	13
13104bq2	52416cz2	546f2	40950ea2	11466x2	21294cd2

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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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