Cremona's table of elliptic curves

25840 = 2⁴ · 5 · 17 · 19

Field	Data	Notes
Atkin-Lehner	2+ 5+ 17+ 19-	Signs for the Atkin-Lehner involutions
Class	25840a	Isogeny class
Conductor	25840	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	8192	Modular degree for the optimal curve
Δ	39276800 = 28 · 52 · 17 · 192	Discriminant
Eigenvalues	2+  2 5+  4  0 -2 17+ 19-	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-116,416]	[a1,a2,a3,a4,a6]
j	680136784/153425	j-invariant
L	3.8546619144089	L(r)(E,1)/r!
Ω	1.9273309572045	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	12920h1 103360ch1 129200u1	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 25840a1

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

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Quadratic twists for elliptic curve 25840a1

-4	8	5
12920h1	103360ch1	129200u1

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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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