Cremona's table of elliptic curves

Curve 42840x4

42840 = 23 · 32 · 5 · 7 · 17



Data for elliptic curve 42840x4

Field Data Notes
Atkin-Lehner 2+ 3- 5- 7+ 17- Signs for the Atkin-Lehner involutions
Class 42840x Isogeny class
Conductor 42840 Conductor
∏ cp 64 Product of Tamagawa factors cp
Δ 2892243639600000000 = 210 · 311 · 58 · 74 · 17 Discriminant
Eigenvalues 2+ 3- 5- 7+  0 -2 17-  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-885027,-309844946] [a1,a2,a3,a4,a6]
j 102698898986742916/3874426171875 j-invariant
L 2.4962485009748 L(r)(E,1)/r!
Ω 0.15601553132241 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 85680cd4 14280bs3 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
Back to Tables and computations