Cremona's table of elliptic curves

2091 = 3 · 17 · 41

Field	Data	Notes
Atkin-Lehner	3- 17+ 41+	Signs for the Atkin-Lehner involutions
Class	2091a	Isogeny class
Conductor	2091	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	-4372281 = -1 · 32 · 172 · 412	Discriminant
Eigenvalues	1 3- -2  4  0  2 17+  2	Hecke eigenvalues for primes up to 20
Equation	[1,0,1,33,-65]	[a1,a2,a3,a4,a6]
j	4149995543/4372281	j-invariant
L	2.6609505930306	L(r)(E,1)/r!
Ω	1.3304752965153	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	33456l2 6273b2 52275d2 102459j2	Quadratic twists by: -4 -3 5 -7

Hecke Eigenvalues for elliptic curve 2091a2

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	-	-2	4	0	2	+	2	6	-2	-2	2	+	12	2	-2	0	10	14	8	10	4	-8	6	-14

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Quadratic twists for elliptic curve 2091a2

-4	-3	5	-7	17	41
33456l2	6273b2	52275d2	102459j2	35547e2	85731c2

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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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