Cremona's table of elliptic curves

205 = 5 · 41

Field	Data	Notes
Atkin-Lehner	5- 41+	Signs for the Atkin-Lehner involutions
Conductor	205	Conductor
Count	2	Number of curves in isogeny class
Curves	205c1 205c2	Curves in isogeny class
deg	8	Modular degree for the optimal curve
Eigenvalues	1  2 5-  2  0 -4  4  0	Hecke eigenvalues for primes less than 20
L	2.0770346319911	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	3280k 13120e 1845d 1025a	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 205c

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

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Quadratic twists for isogeny class 205c

-4	8	-3	5	-7	-11	13	17	-19	-23	41
3280k	13120e	1845d	1025a	10045h	24805g	34645c	59245b	74005u	108445c	8405b

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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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