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	12915i	Isogeny class
Conductor	12915	Conductor
∏ cp	4	Product of Tamagawa factors cp
Δ	128672145 = 37 · 5 · 7 · 412	Discriminant
Eigenvalues	1 3- 5+ 7- -4 -2  6 -4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-8472240,9493850835]	[a1,a2,a3,a4,a6]
Generators	[21134:585067:8]	Generators of the group modulo torsion
j	92255222857130255543041/176505	j-invariant
L	4.8810353913531	L(r)(E,1)/r!
Ω	0.57458759012063	Real period
R	8.494850002466	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	4305m5 64575j6 90405bu6	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 12915i5

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	6	-4	0	10	8	-10	+	-4	0	10	4	-2	-12	16	-6	8	-4	6	2

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Quadratic twists for elliptic curve 12915i5

-3	5	-7
4305m5	64575j6	90405bu6

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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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