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	15680cm	Isogeny class
Conductor	15680	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	43008	Modular degree for the optimal curve
Δ	-3305767485440 = -1 · 214 · 5 · 79	Discriminant
Eigenvalues	2- -1 5+ 7- -5  7  3  2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-23781,1422205]	[a1,a2,a3,a4,a6]
Generators	[180:1715:1]	Generators of the group modulo torsion
j	-2249728/5	j-invariant
L	3.3685597325978	L(r)(E,1)/r!
Ω	0.79646163025019	Real period
R	2.1147030846544	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	15680l1 3920k1 78400hp1 15680do1	Quadratic twists by: -4 8 5 -7

Hecke Eigenvalues for elliptic curve 15680cm1

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	7	3	2	-8	5	-10	-4	6	2	-7	10	10	-12	-2	0	2	7	-4	8	-17

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Quadratic twists for elliptic curve 15680cm1

-4	8	5	-7
15680l1	3920k1	78400hp1	15680do1

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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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