Cremona's table of elliptic curves

1221 = 3 · 11 · 37

Field	Data	Notes
Atkin-Lehner	3- 11- 37-	Signs for the Atkin-Lehner involutions
Class	1221c	Isogeny class
Conductor	1221	Conductor
∏ cp	4	Product of Tamagawa factors cp
Δ	40293 = 32 · 112 · 37	Discriminant
Eigenvalues	-1 3-  0  0 11-  4  2 -2	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-198,-1089]	[a1,a2,a3,a4,a6]
j	858729462625/40293	j-invariant
L	1.2726912446243	L(r)(E,1)/r!
Ω	1.2726912446243	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	19536s2 78144a2 3663c2 30525h2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1221c2

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	-	0	0	-	4	2	-2	-6	2	4	-	6	6	12	2	10	0	4	16	2	-14	12	12	10

---

Quadratic twists for elliptic curve 1221c2

-4	8	-3	5	-7	-11	37
19536s2	78144a2	3663c2	30525h2	59829h2	13431e2	45177j2

---

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