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	20280bb	Isogeny class
Conductor	20280	Conductor
∏ cp	96	Product of Tamagawa factors cp
Δ	-2.823683265E+20	Discriminant
Eigenvalues	2- 3- 5-  0  0 13+  2  0	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-36560,808466400]	[a1,a2,a3,a4,a6]
j	-546718898/28564453125	j-invariant
L	3.321981296163	L(r)(E,1)/r!
Ω	0.13841588734012	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	40560h3 60840f3 101400b3 1560c4	Quadratic twists by: -4 -3 5 13

Hecke Eigenvalues for elliptic curve 20280bb4

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	0	+	2	0	4	6	-8	-10	6	4	8	2	0	6	-12	-8	-6	8	12	14	10

---

Quadratic twists for elliptic curve 20280bb4

-4	-3	5	13
40560h3	60840f3	101400b3	1560c4

---

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