Cremona's table of elliptic curves

Curve 81312t2

81312 = 25 · 3 · 7 · 112



Data for elliptic curve 81312t2

Field Data Notes
Atkin-Lehner 2+ 3- 7+ 11- Signs for the Atkin-Lehner involutions
Class 81312t Isogeny class
Conductor 81312 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ -41657590808064 = -1 · 29 · 38 · 7 · 116 Discriminant
Eigenvalues 2+ 3-  2 7+ 11- -2 -2  4 Hecke eigenvalues for primes up to 20
Equation [0,1,0,5768,262700] [a1,a2,a3,a4,a6]
Generators [863:25470:1] Generators of the group modulo torsion
j 23393656/45927 j-invariant
L 9.1769953517206 L(r)(E,1)/r!
Ω 0.44412297983957 Real period
R 5.1657962804555 Regulator
r 1 Rank of the group of rational points
S 1.0000000002659 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 81312l2 672h4 Quadratic twists by: -4 -11


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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