Cremona's table of elliptic curves

805 = 5 · 7 · 23

Field	Data	Notes
Atkin-Lehner	5+ 7+ 23-	Signs for the Atkin-Lehner involutions
Class	805c	Isogeny class
Conductor	805	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	360	Modular degree for the optimal curve
Δ	-2399636575 = -1 · 52 · 73 · 234	Discriminant
Eigenvalues	-1  0 5+ 7+ -4 -2  6  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,2,2356]	[a1,a2,a3,a4,a6]
j	1367631/2399636575	j-invariant
L	0.57578304267277	L(r)(E,1)/r!
Ω	1.1515660853455	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	12880q1 51520z1 7245n1 4025c1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 805c1

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

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Quadratic twists for elliptic curve 805c1

-4	8	-3	5	-7	-11	-23
12880q1	51520z1	7245n1	4025c1	5635k1	97405d1	18515n1

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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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