Cremona's table of elliptic curves

Curve 21462m1

21462 = 2 · 3 · 72 · 73



Data for elliptic curve 21462m1

Field Data Notes
Atkin-Lehner 2+ 3- 7- 73+ Signs for the Atkin-Lehner involutions
Class 21462m Isogeny class
Conductor 21462 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 258048 Modular degree for the optimal curve
Δ 27365804397969408 = 214 · 34 · 710 · 73 Discriminant
Eigenvalues 2+ 3-  0 7- -2 -4 -2  8 Hecke eigenvalues for primes up to 20
Equation [1,0,1,-197741,32879144] [a1,a2,a3,a4,a6]
Generators [-93:7150:1] Generators of the group modulo torsion
j 7268126762877625/232605499392 j-invariant
L 4.3987437118976 L(r)(E,1)/r!
Ω 0.37277955861637 Real period
R 2.9499630614299 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 64386bo1 3066c1 Quadratic twists by: -3 -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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