Cremona's table of elliptic curves

13888 = 2⁶ · 7 · 31

Field	Data	Notes
Atkin-Lehner	2+ 7+ 31+	Signs for the Atkin-Lehner involutions
Class	13888c	Isogeny class
Conductor	13888	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	2048	Modular degree for the optimal curve
Δ	-28442624 = -1 · 217 · 7 · 31	Discriminant
Eigenvalues	2+ -1 -1 7+ -4 -4  2  2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-1,257]	[a1,a2,a3,a4,a6]
Generators	[1:16:1]	Generators of the group modulo torsion
j	-2/217	j-invariant
L	2.7212653735686	L(r)(E,1)/r!
Ω	1.6743745454143	Real period
R	0.40631072973211	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	13888u1 1736a1 124992bf1 97216u1	Quadratic twists by: -4 8 -3 -7

Hecke Eigenvalues for elliptic curve 13888c1

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
+	-1	-1	+	-4	-4	2	2	7	-1	+	2	8	-6	1	6	-8	-4	-3	16	3	-3	1	-9	8

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Quadratic twists for elliptic curve 13888c1

-4	8	-3	-7
13888u1	1736a1	124992bf1	97216u1

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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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