Cremona's table of elliptic curves

Curve 42560bc1

42560 = 26 · 5 · 7 · 19



Data for elliptic curve 42560bc1

Field Data Notes
Atkin-Lehner 2+ 5- 7+ 19- Signs for the Atkin-Lehner involutions
Class 42560bc Isogeny class
Conductor 42560 Conductor
∏ cp 6 Product of Tamagawa factors cp
deg 161280 Modular degree for the optimal curve
Δ -7866449920 = -1 · 215 · 5 · 7 · 193 Discriminant
Eigenvalues 2+  0 5- 7+ -5 -5  3 19- Hecke eigenvalues for primes up to 20
Equation [0,0,0,-507692,139235056] [a1,a2,a3,a4,a6]
Generators [420:304:1] Generators of the group modulo torsion
j -441646443250372872/240065 j-invariant
L 4.4747484024472 L(r)(E,1)/r!
Ω 0.80388486032359 Real period
R 0.92773410374549 Regulator
r 1 Rank of the group of rational points
S 1.0000000000013 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 42560bi1 21280p1 Quadratic twists by: -4 8


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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