Cremona's table of elliptic curves

Curve 72128i2

72128 = 26 · 72 · 23



Data for elliptic curve 72128i2

Field Data Notes
Atkin-Lehner 2+ 7- 23+ Signs for the Atkin-Lehner involutions
Class 72128i Isogeny class
Conductor 72128 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ -11891310592 = -1 · 216 · 73 · 232 Discriminant
Eigenvalues 2+ -2  2 7-  4  0  6  8 Hecke eigenvalues for primes up to 20
Equation [0,1,0,383,-4257] [a1,a2,a3,a4,a6]
j 275684/529 j-invariant
L 2.6552693792586 L(r)(E,1)/r!
Ω 0.66381734140949 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 72128cb2 9016c2 72128g2 Quadratic twists by: -4 8 -7


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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