Cremona's table of elliptic curves

13685 = 5 · 7 · 17 · 23

Field	Data	Notes
Atkin-Lehner	5+ 7+ 17+ 23-	Signs for the Atkin-Lehner involutions
Class	13685a	Isogeny class
Conductor	13685	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	938895932777280625 = 54 · 76 · 176 · 232	Discriminant
Eigenvalues	-1  0 5+ 7+ -4 -2 17+  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,-568608,-158167894]	[a1,a2,a3,a4,a6]
j	20331147593374993945809/938895932777280625	j-invariant
L	0.17435585188701	L(r)(E,1)/r!
Ω	0.17435585188701	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	123165o2 68425f2 95795v2	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 13685a2

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	+	+	-4	-2	+	4	-	-2	4	2	-2	0	0	-10	-4	-14	8	-16	6	0	-12	-2	-2

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Quadratic twists for elliptic curve 13685a2

-3	5	-7
123165o2	68425f2	95795v2

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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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