Cremona's table of elliptic curves

2128 = 2⁴ · 7 · 19

Field	Data	Notes
Atkin-Lehner	2- 7+ 19+	Signs for the Atkin-Lehner involutions
Class	2128a	Isogeny class
Conductor	2128	Conductor
∏ cp	2	Product of Tamagawa factors cp
Δ	646912 = 28 · 7 · 192	Discriminant
Eigenvalues	2-  0 -2 7+ -4  4  6 19+	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-31,-54]	[a1,a2,a3,a4,a6]
j	12869712/2527	j-invariant
L	1.0254993819566	L(r)(E,1)/r!
Ω	2.0509987639132	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	532a2 8512d2 19152bn2 53200ca2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 2128a2

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

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Quadratic twists for elliptic curve 2128a2

-4	8	-3	5	-7	-19
532a2	8512d2	19152bn2	53200ca2	14896bc2	40432p2

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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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