Cremona's table of elliptic curves

18240 = 2⁶ · 3 · 5 · 19

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5- 19+	Signs for the Atkin-Lehner involutions
Class	18240t	Isogeny class
Conductor	18240	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	20480	Modular degree for the optimal curve
Δ	-114980290560 = -1 · 218 · 35 · 5 · 192	Discriminant
Eigenvalues	2+ 3+ 5- -2  6  0 -6 19+	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,1215,-1215]	[a1,a2,a3,a4,a6]
j	756058031/438615	j-invariant
L	1.2477944965392	L(r)(E,1)/r!
Ω	0.62389724826962	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	18240cv1 285a1 54720z1 91200cx1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 18240t1

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
+	+	-	-2	6	0	-6	+	-8	-4	0	-4	0	2	-8	-2	-12	-2	8	16	14	8	0	0	-12

---

Quadratic twists for elliptic curve 18240t1

-4	8	-3	5
18240cv1	285a1	54720z1	91200cx1

---

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