Cremona's table of elliptic curves

15640 = 2³ · 5 · 17 · 23

Field	Data	Notes
Atkin-Lehner	2+ 5+ 17- 23-	Signs for the Atkin-Lehner involutions
Class	15640b	Isogeny class
Conductor	15640	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	12160	Modular degree for the optimal curve
Δ	-2658800 = -1 · 24 · 52 · 172 · 23	Discriminant
Eigenvalues	2+ -1 5+  2 -6 -3 17-  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-8296,293621]	[a1,a2,a3,a4,a6]
Generators	[46:85:1]	Generators of the group modulo torsion
j	-3946956213086464/166175	j-invariant
L	3.2058674504298	L(r)(E,1)/r!
Ω	1.9020901255888	Real period
R	0.21068056971258	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	31280d1 125120bh1 78200q1	Quadratic twists by: -4 8 5

Hecke Eigenvalues for elliptic curve 15640b1

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	-6	-3	-	4	-	-9	5	2	-7	8	13	10	-12	-8	4	-3	13	14	-6	10	-6

---

Quadratic twists for elliptic curve 15640b1

-4	8	5
31280d1	125120bh1	78200q1

---

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