Cremona's table of elliptic curves

Curve 74256a2

74256 = 24 · 3 · 7 · 13 · 17



Data for elliptic curve 74256a2

Field Data Notes
Atkin-Lehner 2+ 3+ 7+ 13+ 17+ Signs for the Atkin-Lehner involutions
Class 74256a Isogeny class
Conductor 74256 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ 122579428608 = 28 · 32 · 72 · 13 · 174 Discriminant
Eigenvalues 2+ 3+  0 7+ -2 13+ 17+  4 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-3108,-63504] [a1,a2,a3,a4,a6]
Generators [-28:28:1] Generators of the group modulo torsion
j 12973779250000/478825893 j-invariant
L 4.4136083646911 L(r)(E,1)/r!
Ω 0.64084450569752 Real period
R 1.7217937914041 Regulator
r 1 Rank of the group of rational points
S 1.0000000000067 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 37128j2 Quadratic twists by: -4


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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