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	15680v	Isogeny class
Conductor	15680	Conductor
∏ cp	16	Product of Tamagawa factors cp
deg	215040	Modular degree for the optimal curve
Δ	-270808472407244800 = -1 · 228 · 52 · 79	Discriminant
Eigenvalues	2+ -2 5+ 7-  4 -2  8  6	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-222721,-47651745]	[a1,a2,a3,a4,a6]
j	-115501303/25600	j-invariant
L	1.7375873293379	L(r)(E,1)/r!
Ω	0.10859920808362	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	15680ct1 490j1 78400ck1 15680bu1	Quadratic twists by: -4 8 5 -7

Hecke Eigenvalues for elliptic curve 15680v1

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

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Quadratic twists for elliptic curve 15680v1

-4	8	5	-7
15680ct1	490j1	78400ck1	15680bu1

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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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