Cremona's table of elliptic curves

42439 = 31 · 37²

Field	Data	Notes
Atkin-Lehner	31+ 37+	Signs for the Atkin-Lehner involutions
Class	42439a	Isogeny class
Conductor	42439	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	109440	Modular degree for the optimal curve
Δ	91229533924813 = 312 · 377	Discriminant
Eigenvalues	0 -1  2 -5 -3  2  0  6	Hecke eigenvalues for primes up to 20
Equation	[0,-1,1,-12777,317088]	[a1,a2,a3,a4,a6]
Generators	[-12:684:1]	Generators of the group modulo torsion
j	89915392/35557	j-invariant
L	2.6875868232495	L(r)(E,1)/r!
Ω	0.54812291833812	Real period
R	1.2258139248151	Regulator
r	1	Rank of the group of rational points
S	1.0000000000048	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	1147a1	Quadratic twists by: 37

Hecke Eigenvalues for elliptic curve 42439a1

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	-1	2	-5	-3	2	0	6	0	4	+	+	-5	-6	-9	-5	6	-8	-4	1	-11	10	-17	-8	6

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Quadratic twists for elliptic curve 42439a1

37
1147a1

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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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