Cremona's table of elliptic curves

15870 = 2 · 3 · 5 · 23²

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 23-	Signs for the Atkin-Lehner involutions
Class	15870bf	Isogeny class
Conductor	15870	Conductor
∏ cp	40	Product of Tamagawa factors cp
Δ	24514743218400 = 25 · 32 · 52 · 237	Discriminant
Eigenvalues	2- 3- 5+  0  2  4 -6  8	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-2076336,1151408160]	[a1,a2,a3,a4,a6]
j	6687281588245201/165600	j-invariant
L	4.8884405624217	L(r)(E,1)/r!
Ω	0.48884405624217	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	126960y2 47610v2 79350b2 690j2	Quadratic twists by: -4 -3 5 -23

Hecke Eigenvalues for elliptic curve 15870bf2

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

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Quadratic twists for elliptic curve 15870bf2

-4	-3	5	-23
126960y2	47610v2	79350b2	690j2

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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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