Cremona's table of elliptic curves

18848 = 2⁵ · 19 · 31

Field	Data	Notes
Atkin-Lehner	2+ 19- 31-	Signs for the Atkin-Lehner involutions
Class	18848a	Isogeny class
Conductor	18848	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	2176	Modular degree for the optimal curve
Δ	-716224 = -1 · 26 · 192 · 31	Discriminant
Eigenvalues	2+  2  2 -4  0  2  2 19-	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-2,-40]	[a1,a2,a3,a4,a6]
Generators	[2506:5760:343]	Generators of the group modulo torsion
j	-21952/11191	j-invariant
L	7.4163626300903	L(r)(E,1)/r!
Ω	1.2829149498147	Real period
R	5.7808685066469	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	18848b1 37696b1	Quadratic twists by: -4 8

Hecke Eigenvalues for elliptic curve 18848a1

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	-4	0	2	2	-	-2	10	-	-10	-6	0	-4	-6	-4	0	-8	-8	6	0	4	8	-10

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Quadratic twists for elliptic curve 18848a1

-4	8
18848b1	37696b1

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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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