Cremona's table of elliptic curves

91728 = 2⁴ · 3² · 7² · 13

Field	Data	Notes
Atkin-Lehner	2+ 3- 7- 13-	Signs for the Atkin-Lehner involutions
Class	91728br	Isogeny class
Conductor	91728	Conductor
∏ cp	64	Product of Tamagawa factors cp
Δ	-778898405376 = -1 · 211 · 38 · 73 · 132	Discriminant
Eigenvalues	2+ 3- -2 7- -4 13- -2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,1869,-28910]	[a1,a2,a3,a4,a6]
Generators	[53:-468:1] [21:140:1]	Generators of the group modulo torsion
j	1409938/1521	j-invariant
L	9.6617675399925	L(r)(E,1)/r!
Ω	0.48492111611498	Real period
R	1.2452756771705	Regulator
r	2	Rank of the group of rational points
S	1.0000000000086	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	45864u2 30576bb2 91728y2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 91728br2

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

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Quadratic twists for elliptic curve 91728br2

-4	-3	-7
45864u2	30576bb2	91728y2

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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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