Cremona's table of elliptic curves

27840 = 2⁶ · 3 · 5 · 29

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 29+	Signs for the Atkin-Lehner involutions
Class	27840dm	Isogeny class
Conductor	27840	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	8343426170880 = 218 · 32 · 5 · 294	Discriminant
Eigenvalues	2- 3- 5+ -4 -4 -6  6 -4	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-16481,796959]	[a1,a2,a3,a4,a6]
Generators	[85:132:1]	Generators of the group modulo torsion
j	1888690601881/31827645	j-invariant
L	4.2961565733174	L(r)(E,1)/r!
Ω	0.73697698065568	Real period
R	2.9147155786977	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	27840g4 6960bf3 83520gp4	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 27840dm4

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

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Quadratic twists for elliptic curve 27840dm4

-4	8	-3
27840g4	6960bf3	83520gp4

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Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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