Cremona's table of elliptic curves

91 = 7 · 13

Field	Data	Notes
Atkin-Lehner	7- 13-	Signs for the Atkin-Lehner involutions
Conductor	91	Conductor
Count	3	Number of curves in isogeny class
Curves	91b1 91b2 91b3	Curves in isogeny class
deg	4	Modular degree for the optimal curve
Eigenvalues	0 -2 -3 7-  0 13- -6 -7	Hecke eigenvalues for primes less than 20
L	0.71081130382563	L(r)(E,1)/r!
r	1	Rank of the group of rational points
Twists	1456h 5824j 819e 2275a	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 91b

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
0	-2	-3	-	0	-	-6	-7	3	-9	5	2	-6	-1	3	-9	0	-10	14	-6	11	-1	3	15	-1

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Quadratic twists for isogeny class 91b

-4	8	-3	5	-7	-11	13	17	-19	-23	29	-31	37
1456h	5824j	819e	2275a	637b	11011c	1183a	26299c	32851k	48139h	76531b	87451d	124579b

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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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