Cremona's table of elliptic curves

18785 = 5 · 13 · 17²

Field	Data	Notes
Atkin-Lehner	5- 13+ 17+	Signs for the Atkin-Lehner involutions
Class	18785b	Isogeny class
Conductor	18785	Conductor
∏ cp	10	Product of Tamagawa factors cp
deg	230400	Modular degree for the optimal curve
Δ	16670008590625 = 55 · 13 · 177	Discriminant
Eigenvalues	-1  0 5-  2  4 13+ 17+ -2	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,-4158042,-3262443616]	[a1,a2,a3,a4,a6]
j	329379602649536529/690625	j-invariant
L	1.0572491507017	L(r)(E,1)/r!
Ω	0.10572491507017	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	93925e1 1105a1	Quadratic twists by: 5 17

Hecke Eigenvalues for elliptic curve 18785b1

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	0	-	2	4	+	+	-2	-4	6	-8	-2	-10	-6	0	-6	10	-10	-8	8	-10	-10	16	18	14

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Quadratic twists for elliptic curve 18785b1

5	17
93925e1	1105a1

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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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