Cremona's table of elliptic curves

18928 = 2⁴ · 7 · 13²

Field	Data	Notes
Atkin-Lehner	2+ 7+ 13+	Signs for the Atkin-Lehner involutions
Class	18928c	Isogeny class
Conductor	18928	Conductor
∏ cp	12	Product of Tamagawa factors cp
deg	49920	Modular degree for the optimal curve
Δ	-40930104656896 = -1 · 210 · 72 · 138	Discriminant
Eigenvalues	2+ -2  1 7+ -2 13+ -3  8	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-9520,468612]	[a1,a2,a3,a4,a6]
Generators	[56:338:1]	Generators of the group modulo torsion
j	-114244/49	j-invariant
L	3.1564031280215	L(r)(E,1)/r!
Ω	0.603575563719	Real period
R	0.43579231800088	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	9464h1 75712cc1 18928f1	Quadratic twists by: -4 8 13

Hecke Eigenvalues for elliptic curve 18928c1

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	1	+	-2	+	-3	8	-6	-9	6	3	-3	2	12	-5	14	-11	2	-12	9	10	-6	10	10

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Quadratic twists for elliptic curve 18928c1

-4	8	13
9464h1	75712cc1	18928f1

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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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