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	15680be	Isogeny class
Conductor	15680	Conductor
∏ cp	10	Product of Tamagawa factors cp
deg	53760	Modular degree for the optimal curve
Δ	-1180631244800000 = -1 · 216 · 55 · 78	Discriminant
Eigenvalues	2+  1 5- 7+  2 -4  0 -6	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,7775,-1629377]	[a1,a2,a3,a4,a6]
j	137564/3125	j-invariant
L	2.3617980440089	L(r)(E,1)/r!
Ω	0.23617980440089	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	15680dd1 1960a1 78400f1 15680p1	Quadratic twists by: -4 8 5 -7

Hecke Eigenvalues for elliptic curve 15680be1

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	-4	0	-6	3	3	0	12	-7	9	0	6	10	-5	-11	-10	-8	6	3	17	-2

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Quadratic twists for elliptic curve 15680be1

-4	8	5	-7
15680dd1	1960a1	78400f1	15680p1

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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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