Cremona's table of elliptic curves

21630 = 2 · 3 · 5 · 7 · 103

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 7- 103-	Signs for the Atkin-Lehner involutions
Class	21630bb	Isogeny class
Conductor	21630	Conductor
∏ cp	432	Product of Tamagawa factors cp
deg	41472	Modular degree for the optimal curve
Δ	2637295718400 = 212 · 36 · 52 · 73 · 103	Discriminant
Eigenvalues	2- 3- 5+ 7-  0 -4 -6  2	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-3616,29696]	[a1,a2,a3,a4,a6]
Generators	[-46:338:1]	Generators of the group modulo torsion
j	5228974019179009/2637295718400	j-invariant
L	8.9831668065235	L(r)(E,1)/r!
Ω	0.71629109592629	Real period
R	1.0451019678095	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	6	Number of elements in the torsion subgroup
Twists	64890bm1 108150a1	Quadratic twists by: -3 5

Hecke Eigenvalues for elliptic curve 21630bb1

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
-	-	+	-	0	-4	-6	2	0	6	-4	8	0	-4	-12	6	0	2	-4	0	-10	-4	-6	-6	-4

---

Quadratic twists for elliptic curve 21630bb1

-3	5
64890bm1	108150a1

---

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