Cremona's table of elliptic curves

637 = 7² · 13

Field	Data	Notes
Atkin-Lehner	7- 13+	Signs for the Atkin-Lehner involutions
Conductor	637	Conductor
Count	3	Number of curves in isogeny class
Curves	637b1 637b2 637b3	Curves in isogeny class
deg	192	Modular degree for the optimal curve
Eigenvalues	0  2  3 7-  0 13+  6  7	Hecke eigenvalues for primes less than 20
L	2.192809362283	L(r)(E,1)/r!
r	0	Rank of the group of rational points
Twists	10192bb 40768bw 5733f 15925m	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for isogeny class 637b

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

---

Quadratic twists for isogeny class 637b

-4	8	-3	5	-7	-11	13
10192bb	40768bw	5733f	15925m	91b	77077v	8281d

---

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