Cremona's table of elliptic curves

28400 = 2⁴ · 5² · 71

Field	Data	Notes
Atkin-Lehner	2- 5+ 71-	Signs for the Atkin-Lehner involutions
Class	28400u	Isogeny class
Conductor	28400	Conductor
∏ cp	4	Product of Tamagawa factors cp
Δ	7100000000 = 28 · 58 · 71	Discriminant
Eigenvalues	2-  2 5+ -4  4  4  8 -8	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-9508,360012]	[a1,a2,a3,a4,a6]
Generators	[30462:290125:216]	Generators of the group modulo torsion
j	23767139536/1775	j-invariant
L	7.4818899877867	L(r)(E,1)/r!
Ω	1.2627082434241	Real period
R	5.9252721495648	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	7100a2 113600cn2 5680l2	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 28400u2

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

---

Quadratic twists for elliptic curve 28400u2

-4	8	5
7100a2	113600cn2	5680l2

---

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