Cremona's table of elliptic curves

16240 = 2⁴ · 5 · 7 · 29

Field	Data	Notes
Atkin-Lehner	2+ 5+ 7+ 29-	Signs for the Atkin-Lehner involutions
Class	16240b	Isogeny class
Conductor	16240	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	9094400 = 28 · 52 · 72 · 29	Discriminant
Eigenvalues	2+  0 5+ 7+  0 -2 -6 -6	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-143,-642]	[a1,a2,a3,a4,a6]
Generators	[-7:4:1] [14:10:1]	Generators of the group modulo torsion
j	1263257424/35525	j-invariant
L	6.3497446507591	L(r)(E,1)/r!
Ω	1.3829667454973	Real period
R	2.2956967951083	Regulator
r	2	Rank of the group of rational points
S	0.99999999999997	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	8120c2 64960bn2 81200n2 113680n2	Quadratic twists by: -4 8 5 -7

Hecke Eigenvalues for elliptic curve 16240b2

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

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Quadratic twists for elliptic curve 16240b2

-4	8	5	-7
8120c2	64960bn2	81200n2	113680n2

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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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