Cremona's table of elliptic curves

31605 = 3 · 5 · 7² · 43

Field	Data	Notes
Atkin-Lehner	3- 5- 7- 43-	Signs for the Atkin-Lehner involutions
Class	31605bb	Isogeny class
Conductor	31605	Conductor
∏ cp	128	Product of Tamagawa factors cp
Δ	49807977921016875 = 38 · 54 · 710 · 43	Discriminant
Eigenvalues	-1 3- 5- 7- -4 -6  6 -4	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-7027385,7169729622]	[a1,a2,a3,a4,a6]
Generators	[1579:-4097:1]	Generators of the group modulo torsion
j	326224607904438542209/423360826875	j-invariant
L	3.8138820346245	L(r)(E,1)/r!
Ω	0.30198310975354	Real period
R	0.39467046246158	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	94815t4 4515a3	Quadratic twists by: -3 -7

Hecke Eigenvalues for elliptic curve 31605bb4

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	-	-	-	-4	-6	6	-4	0	-2	-4	-2	-2	-	4	6	8	6	-4	8	2	-8	8	18	-2

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Quadratic twists for elliptic curve 31605bb4

-3	-7
94815t4	4515a3

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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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