Cremona's table of elliptic curves

Curve 28440b2

28440 = 23 · 32 · 5 · 79



Data for elliptic curve 28440b2

Field Data Notes
Atkin-Lehner 2+ 3+ 5+ 79- Signs for the Atkin-Lehner involutions
Class 28440b Isogeny class
Conductor 28440 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ -6289490073600 = -1 · 211 · 39 · 52 · 792 Discriminant
Eigenvalues 2+ 3+ 5+  0  0 -4 -4  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-2403,-128898] [a1,a2,a3,a4,a6]
j -38068326/156025 j-invariant
L 0.62152074584005 L(r)(E,1)/r!
Ω 0.3107603729201 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 56880a2 28440i2 Quadratic twists by: -4 -3


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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