Cremona's table of elliptic curves

845 = 5 · 13²

Field	Data	Notes
Atkin-Lehner	5- 13+	Signs for the Atkin-Lehner involutions
Conductor	845	Conductor
Count	2	Number of curves in isogeny class
Curves	845a1 845a2	Curves in isogeny class
deg	336	Modular degree for the optimal curve
Eigenvalues	1 -2 5-  4 -2 13+  2  6	Hecke eigenvalues for primes less than 20
L	1.4929349381889	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	13520bc 54080p 7605j 4225b	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 845a

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	-2	+	2	6	-6	2	10	2	6	10	-4	2	-6	2	4	-6	6	-12	16	-2	2

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Quadratic twists for isogeny class 845a

-4	8	-3	5	-7	-11	13
13520bc	54080p	7605j	4225b	41405f	102245l	65a

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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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