Cremona's table of elliptic curves

1278 = 2 · 3² · 71

Field	Data	Notes
Atkin-Lehner	2+ 3+ 71+	Signs for the Atkin-Lehner involutions
Class	1278a	Isogeny class
Conductor	1278	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	1248	Modular degree for the optimal curve
Δ	-11448262656 = -1 · 213 · 39 · 71	Discriminant
Eigenvalues	2+ 3+  1 -1  1 -6  6 -7	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-1959,-33283]	[a1,a2,a3,a4,a6]
Generators	[67:331:1]	Generators of the group modulo torsion
j	-42253279587/581632	j-invariant
L	2.0634644828153	L(r)(E,1)/r!
Ω	0.35850477988728	Real period
R	2.8778758312011	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	10224i1 40896c1 1278f1 31950bm1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1278a1

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	-1	1	-6	6	-7	-4	-3	7	-6	-9	5	0	0	11	3	-14	+	1	-8	16	-18	-12

---

Quadratic twists for elliptic curve 1278a1

-4	8	-3	5	-7	-71
10224i1	40896c1	1278f1	31950bm1	62622c1	90738a1

---

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