Cremona's table of elliptic curves

15680 = 2⁶ · 5 · 7²

Field	Data	Notes
Atkin-Lehner	2- 5+ 7-	Signs for the Atkin-Lehner involutions
Class	15680ci	Isogeny class
Conductor	15680	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	32256	Modular degree for the optimal curve
Δ	-92561489592320 = -1 · 216 · 5 · 710	Discriminant
Eigenvalues	2- -1 5+ 7-  2  0 -4  2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-3201,-467039]	[a1,a2,a3,a4,a6]
Generators	[93:176:1]	Generators of the group modulo torsion
j	-196/5	j-invariant
L	3.4143255902524	L(r)(E,1)/r!
Ω	0.26097051964683	Real period
R	3.2707962520757	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	15680i1 3920i1 78400hg1 15680cy1	Quadratic twists by: -4 8 5 -7

Hecke Eigenvalues for elliptic curve 15680ci1

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	+	-	2	0	-4	2	-1	-9	4	-4	-1	9	0	10	10	9	5	-14	-12	-14	-11	15	18

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Quadratic twists for elliptic curve 15680ci1

-4	8	5	-7
15680i1	3920i1	78400hg1	15680cy1

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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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