Cremona's table of elliptic curves

Curve 21112c2

21112 = 23 · 7 · 13 · 29



Data for elliptic curve 21112c2

Field Data Notes
Atkin-Lehner 2- 7+ 13- 29+ Signs for the Atkin-Lehner involutions
Class 21112c Isogeny class
Conductor 21112 Conductor
∏ cp 48 Product of Tamagawa factors cp
Δ 72357946451737856 = 28 · 74 · 136 · 293 Discriminant
Eigenvalues 2-  0  2 7+  2 13-  6  2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-165959,22576010] [a1,a2,a3,a4,a6]
Generators [-335:6370:1] Generators of the group modulo torsion
j 1974632017997842128/282648228327101 j-invariant
L 5.8968893006291 L(r)(E,1)/r!
Ω 0.33193326291719 Real period
R 1.4804404879474 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 42224d2 Quadratic twists by: -4


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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