Cremona's table of elliptic curves

38440 = 2³ · 5 · 31²

Field	Data	Notes
Atkin-Lehner	2+ 5+ 31-	Signs for the Atkin-Lehner involutions
Class	38440d	Isogeny class
Conductor	38440	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	6240	Modular degree for the optimal curve
Δ	1230080 = 28 · 5 · 312	Discriminant
Eigenvalues	2+ -2 5+ -2 -3 -4 -6  0	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-41,-101]	[a1,a2,a3,a4,a6]
Generators	[-5:2:1] [-3:2:1]	Generators of the group modulo torsion
j	31744/5	j-invariant
L	5.3149921721212	L(r)(E,1)/r!
Ω	1.9028867608495	Real period
R	0.69828014486655	Regulator
r	2	Rank of the group of rational points
S	0.99999999999972	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	76880e1 38440a1	Quadratic twists by: -4 -31

Hecke Eigenvalues for elliptic curve 38440d1

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	+	-2	-3	-4	-6	0	4	7	-	-8	5	10	-10	4	-9	-13	12	-7	6	-1	-4	15	-8

---

Quadratic twists for elliptic curve 38440d1

-4	-31
76880e1	38440a1

---

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