Cremona's table of elliptic curves

81225 = 3² · 5² · 19²

Field	Data	Notes
Atkin-Lehner	3- 5+ 19+	Signs for the Atkin-Lehner involutions
Class	81225r	Isogeny class
Conductor	81225	Conductor
∏ cp	4	Product of Tamagawa factors cp
Δ	-4.2308258090963E+20	Discriminant
Eigenvalues	1 3- 5+ -1  2 -5 -4 19+	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-53853867,152132177916]	[a1,a2,a3,a4,a6]
j	-89289015625/2187	j-invariant
L	0.62176999702207	L(r)(E,1)/r!
Ω	0.15544250657143	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	27075m2 3249b2 81225be2	Quadratic twists by: -3 5 -19

Hecke Eigenvalues for elliptic curve 81225r2

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	2	-5	-4	+	-4	8	-3	-3	12	1	-6	4	-10	-13	-11	-6	11	1	0	6	-2

---

Quadratic twists for elliptic curve 81225r2

-3	5	-19
27075m2	3249b2	81225be2

---

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