Cremona's table of elliptic curves

1656 = 2³ · 3² · 23

Field	Data	Notes
Atkin-Lehner	2+ 3- 23-	Signs for the Atkin-Lehner involutions
Class	1656c	Isogeny class
Conductor	1656	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	3554067456 = 210 · 38 · 232	Discriminant
Eigenvalues	2+ 3-  2 -4  0 -2  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-1659,-25850]	[a1,a2,a3,a4,a6]
Generators	[122:1260:1]	Generators of the group modulo torsion
j	676449508/4761	j-invariant
L	2.9048238348964	L(r)(E,1)/r!
Ω	0.74838001314832	Real period
R	3.8814823804236	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	3312b2 13248w2 552e2 41400bu2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1656c2

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	2	-4	-	2	-8	2	-10	-4	0	-6	-12	2	-12	16	10	-4	0	-6	-14

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Quadratic twists for elliptic curve 1656c2

-4	8	-3	5	-7	-23
3312b2	13248w2	552e2	41400bu2	81144w2	38088n2

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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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