Cremona's table of elliptic curves

1680 = 2⁴ · 3 · 5 · 7

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 7-	Signs for the Atkin-Lehner involutions
Conductor	1680	Conductor
Count	4	Number of curves in isogeny class
Curves	1680r1 1680r2 1680r3 1680r4	Curves in isogeny class
deg	384	Modular degree for the optimal curve
Eigenvalues	2- 3- 5+ 7-  4 -2 -6  0	Hecke eigenvalues for primes less than 20
L	2.1719552275872	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	210d 6720bv 5040bo 8400bk	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 1680r

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

---

Quadratic twists for isogeny class 1680r

-4	8	-3	5	-7
210d	6720bv	5040bo	8400bk	11760bx

---

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
Back to Tables and computations