Cremona's table of elliptic curves

1220 = 2² · 5 · 61

Field	Data	Notes
Atkin-Lehner	2- 5+ 61+	Signs for the Atkin-Lehner involutions
Class	1220a	Isogeny class
Conductor	1220	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	-595360000 = -1 · 28 · 54 · 612	Discriminant
Eigenvalues	2-  0 5+  2 -6  6  2  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-503,-4498]	[a1,a2,a3,a4,a6]
j	-54977843664/2325625	j-invariant
L	1.5084291954125	L(r)(E,1)/r!
Ω	0.50280973180416	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	4880e2 19520k2 10980g2 6100a2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1220a2

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

---

Quadratic twists for elliptic curve 1220a2

-4	8	-3	5	-7	61
4880e2	19520k2	10980g2	6100a2	59780o2	74420c2

---

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