Cremona's table of elliptic curves

Curve 21560r4

21560 = 23 · 5 · 72 · 11



Data for elliptic curve 21560r4

Field Data Notes
Atkin-Lehner 2- 5- 7- 11- Signs for the Atkin-Lehner involutions
Class 21560r Isogeny class
Conductor 21560 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ 2.5220869804437E+23 Discriminant
Eigenvalues 2-  0 5- 7- 11- -2 -2  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-160028267,778814914374] [a1,a2,a3,a4,a6]
Generators [7470:15378:1] Generators of the group modulo torsion
j 1881029584733429900898/1046747344575625 j-invariant
L 5.154125653937 L(r)(E,1)/r!
Ω 0.097293660898024 Real period
R 6.6218672500914 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 43120q4 107800l4 3080c3 Quadratic twists by: -4 5 -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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