Cremona's table of elliptic curves

25840 = 2⁴ · 5 · 17 · 19

Field	Data	Notes
Atkin-Lehner	2- 5- 17+ 19-	Signs for the Atkin-Lehner involutions
Class	25840bb	Isogeny class
Conductor	25840	Conductor
∏ cp	32	Product of Tamagawa factors cp
deg	36864	Modular degree for the optimal curve
Δ	15710720000 = 212 · 54 · 17 · 192	Discriminant
Eigenvalues	2-  2 5-  4  4 -6 17+ 19-	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-3440,-76288]	[a1,a2,a3,a4,a6]
j	1099424306161/3835625	j-invariant
L	4.9880468183494	L(r)(E,1)/r!
Ω	0.6235058522937	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	1615a1 103360bo1 129200cl1	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 25840bb1

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

---

Quadratic twists for elliptic curve 25840bb1

-4	8	5
1615a1	103360bo1	129200cl1

---

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