Cremona's table of elliptic curves

196 = 2² · 7²

Field	Data	Notes
Atkin-Lehner	2- 7-	Signs for the Atkin-Lehner involutions
Conductor	196	Conductor
Count	2	Number of curves in isogeny class
Curves	196a1 196a2	Curves in isogeny class
deg	6	Modular degree for the optimal curve
Eigenvalues	2- -1 -3 7- -3 -2 -3  1	Hecke eigenvalues for primes less than 20
L	1.1255807767677	L(r)(E,1)/r!
r	1	Rank of the group of rational points
Twists	784i 3136f 1764j 4900g	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 196a

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	-3	-	-3	-2	-3	1	3	-6	7	-1	-6	-4	9	3	-9	1	-7	0	1	-13	-12	-15	10

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Quadratic twists for isogeny class 196a

-4	8	-3	5	-7	-11	13	17	-19	-23
784i	3136f	1764j	4900g	196b	23716h	33124m	56644g	70756f	103684g

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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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