Cremona's table of elliptic curves

20570 = 2 · 5 · 11² · 17

Field	Data	Notes
Atkin-Lehner	2+ 5+ 11- 17-	Signs for the Atkin-Lehner involutions
Class	20570b	Isogeny class
Conductor	20570	Conductor
∏ cp	6	Product of Tamagawa factors cp
Δ	-2175919798250000000 = -1 · 27 · 59 · 116 · 173	Discriminant
Eigenvalues	2+  1 5+ -2 11-  1 17-  1	Hecke eigenvalues for primes up to 20
Equation	[1,0,1,-803564,286126762]	[a1,a2,a3,a4,a6]
Generators	[208:11209:1]	Generators of the group modulo torsion
j	-32391289681150609/1228250000000	j-invariant
L	3.5349142421078	L(r)(E,1)/r!
Ω	0.25847792858776	Real period
R	2.2793140478321	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	102850cb2 170c2	Quadratic twists by: 5 -11

Hecke Eigenvalues for elliptic curve 20570b2

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	+	-2	-	1	-	1	-6	3	5	8	-6	10	-3	-3	3	-11	2	9	-11	-8	12	15	-7

---

Quadratic twists for elliptic curve 20570b2

5	-11
102850cb2	170c2

---

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