Cremona's table of elliptic curves

12915 = 3² · 5 · 7 · 41

Field	Data	Notes
Atkin-Lehner	3+ 5+ 7- 41-	Signs for the Atkin-Lehner involutions
Class	12915a	Isogeny class
Conductor	12915	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	5790246525 = 39 · 52 · 7 · 412	Discriminant
Eigenvalues	-1 3+ 5+ 7- -4 -2 -2 -2	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,-893,-9368]	[a1,a2,a3,a4,a6]
Generators	[-20:23:1]	Generators of the group modulo torsion
j	3996969003/294175	j-invariant
L	2.3538525903388	L(r)(E,1)/r!
Ω	0.87748298077079	Real period
R	1.3412525609734	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	12915b2 64575d2 90405f2	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 12915a2

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

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Quadratic twists for elliptic curve 12915a2

-3	5	-7
12915b2	64575d2	90405f2

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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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