Cremona's table of elliptic curves

2847 = 3 · 13 · 73

Field	Data	Notes
Atkin-Lehner	3+ 13+ 73+	Signs for the Atkin-Lehner involutions
Class	2847a	Isogeny class
Conductor	2847	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	672	Modular degree for the optimal curve
Δ	8993673 = 36 · 132 · 73	Discriminant
Eigenvalues	-1 3+  0  4 -2 13+  4 -4	Hecke eigenvalues for primes up to 20
Equation	[1,1,1,-248,-1600]	[a1,a2,a3,a4,a6]
Generators	[-10:5:1]	Generators of the group modulo torsion
j	1687284042625/8993673	j-invariant
L	2.0052117920842	L(r)(E,1)/r!
Ω	1.2034190427369	Real period
R	1.6662623083675	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	45552l1 8541c1 71175o1 37011a1	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 2847a1

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	+	0	4	-2	+	4	-4	-4	0	-4	2	-6	12	-2	-4	-6	-2	12	0	+	-8	6	-18	10

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Quadratic twists for elliptic curve 2847a1

-4	-3	5	13
45552l1	8541c1	71175o1	37011a1

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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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