Cremona's table of elliptic curves

Curve 21560r1

21560 = 23 · 5 · 72 · 11



Data for elliptic curve 21560r1

Field Data Notes
Atkin-Lehner 2- 5- 7- 11- Signs for the Atkin-Lehner involutions
Class 21560r Isogeny class
Conductor 21560 Conductor
∏ cp 512 Product of Tamagawa factors cp
deg 589824 Modular degree for the optimal curve
Δ -1.3840246465334E+21 Discriminant
Eigenvalues 2-  0 5- 7- 11- -2 -2  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,2544913,872887666] [a1,a2,a3,a4,a6]
Generators [1002:66550:1] Generators of the group modulo torsion
j 60522147178827696/45953185114375 j-invariant
L 5.154125653937 L(r)(E,1)/r!
Ω 0.097293660898024 Real period
R 1.6554668125228 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 43120q1 107800l1 3080c1 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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