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	91728w	Isogeny class
Conductor	91728	Conductor
∏ cp	64	Product of Tamagawa factors cp
Δ	33395269130496 = 28 · 38 · 76 · 132	Discriminant
Eigenvalues	2+ 3-  2 7-  0 13+  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-23079,1320550]	[a1,a2,a3,a4,a6]
Generators	[50:540:1]	Generators of the group modulo torsion
j	61918288/1521	j-invariant
L	7.7671129923975	L(r)(E,1)/r!
Ω	0.65417309704664	Real period
R	2.9682942585011	Regulator
r	1	Rank of the group of rational points
S	1.000000000036	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	45864k2 30576w2 1872i2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 91728w2

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	-	0	+	2	-4	0	-6	0	-2	6	12	4	-6	8	2	-4	-12	14	0	-8	-18	6

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Quadratic twists for elliptic curve 91728w2

-4	-3	-7
45864k2	30576w2	1872i2

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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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