Cremona's table of elliptic curves

855 = 3² · 5 · 19

Field	Data	Notes
Atkin-Lehner	3- 5- 19-	Signs for the Atkin-Lehner involutions
Class	855c	Isogeny class
Conductor	855	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	320	Modular degree for the optimal curve
Δ	-319750335 = -1 · 311 · 5 · 192	Discriminant
Eigenvalues	1 3- 5- -2  6  0  6 19-	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,171,0]	[a1,a2,a3,a4,a6]
j	756058031/438615	j-invariant
L	2.064522451713	L(r)(E,1)/r!
Ω	1.0322612258565	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	13680bl1 54720z1 285a1 4275l1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 855c1

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	6	0	6	-	8	-4	0	4	0	-2	8	-2	-12	2	-8	-16	14	8	0	0	-12

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Quadratic twists for elliptic curve 855c1

-4	8	-3	5	-7	-11	-19
13680bl1	54720z1	285a1	4275l1	41895z1	103455z1	16245l1

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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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