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	28	Product of Tamagawa factors cp
deg	9408	Modular degree for the optimal curve
Δ	-2184821261191296 = -1 · 27 · 313 · 77 · 13	Discriminant
Eigenvalues	2+ 3-  1 7- -5 13+  3 -1	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,6426,2238516]	[a1,a2,a3,a4,a6]
Generators	[315:5796:1]	Generators of the group modulo torsion
j	40251338884511/2997011332224	j-invariant
L	2.2655932961979	L(r)(E,1)/r!
Ω	0.35341951867817	Real period
R	0.22894617307899	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	13104bq1 52416cz1 546f1 40950ea1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1638h1

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 1638h1

-4	8	-3	5	-7	13
13104bq1	52416cz1	546f1	40950ea1	11466x1	21294cd1

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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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