Cremona's table of elliptic curves

20280 = 2³ · 3 · 5 · 13²

Field	Data	Notes
Atkin-Lehner	2+ 3- 5- 13-	Signs for the Atkin-Lehner involutions
Class	20280n	Isogeny class
Conductor	20280	Conductor
∏ cp	40	Product of Tamagawa factors cp
deg	224640	Modular degree for the optimal curve
Δ	-25450798495200000 = -1 · 28 · 3 · 55 · 139	Discriminant
Eigenvalues	2+ 3- 5-  3 -3 13-  1  8	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-284145,-58896525]	[a1,a2,a3,a4,a6]
j	-934577152/9375	j-invariant
L	4.13318334676	L(r)(E,1)/r!
Ω	0.103329583669	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	40560n1 60840bo1 101400ck1 20280ba1	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 20280n1

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
+	-	-	3	-3	-	1	8	-3	6	10	1	-5	-6	8	5	-4	13	8	-11	2	-5	6	-15	-5

---

Quadratic twists for elliptic curve 20280n1

-4	-3	5	13
40560n1	60840bo1	101400ck1	20280ba1

---

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