Cremona's table of elliptic curves

28704 = 2⁵ · 3 · 13 · 23

Field	Data	Notes
Atkin-Lehner	2+ 3+ 13+ 23+	Signs for the Atkin-Lehner involutions
Class	28704a	Isogeny class
Conductor	28704	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	17920	Modular degree for the optimal curve
Δ	-14689501632 = -1 · 26 · 310 · 132 · 23	Discriminant
Eigenvalues	2+ 3+  2  0  2 13+ -4  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-1022,14208]	[a1,a2,a3,a4,a6]
Generators	[-24:156:1]	Generators of the group modulo torsion
j	-1846380912832/229523463	j-invariant
L	5.472405834964	L(r)(E,1)/r!
Ω	1.2115255785618	Real period
R	2.2584772174023	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	28704h1 57408dn2 86112bb1	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 28704a1

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

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Quadratic twists for elliptic curve 28704a1

-4	8	-3
28704h1	57408dn2	86112bb1

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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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