Cremona's table of elliptic curves

31680 = 2⁶ · 3² · 5 · 11

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 11+	Signs for the Atkin-Lehner involutions
Conductor	31680	Conductor
Count	4	Number of curves in isogeny class
Curves	31680ci1 31680ci2 31680ci3 31680ci4	Curves in isogeny class
deg	245760	Modular degree for the optimal curve
Eigenvalues	2- 3- 5+  0 11+ -2  2  8	Hecke eigenvalues for primes less than 20
L	5.2221361581122	L(r)(E,1)/r!
r	1	Rank of the group of rational points
Twists	31680t 7920bj 10560bx	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for isogeny class 31680ci

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

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Quadratic twists for isogeny class 31680ci

-4	8	-3
31680t	7920bj	10560bx

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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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