Cremona's table of elliptic curves

Curve 42840by2

42840 = 23 · 32 · 5 · 7 · 17



Data for elliptic curve 42840by2

Field Data Notes
Atkin-Lehner 2- 3- 5- 7+ 17+ Signs for the Atkin-Lehner involutions
Class 42840by Isogeny class
Conductor 42840 Conductor
∏ cp 192 Product of Tamagawa factors cp
Δ 429617324304000000 = 210 · 38 · 56 · 72 · 174 Discriminant
Eigenvalues 2- 3- 5- 7+  4  6 17+ -8 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-2276067,1321301774] [a1,a2,a3,a4,a6]
j 1746832862522547076/575511890625 j-invariant
L 3.5038381956427 L(r)(E,1)/r!
Ω 0.29198651629638 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 85680bz2 14280d2 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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