Cremona's table of elliptic curves

Curve 21462t2

21462 = 2 · 3 · 72 · 73



Data for elliptic curve 21462t2

Field Data Notes
Atkin-Lehner 2+ 3- 7- 73- Signs for the Atkin-Lehner involutions
Class 21462t Isogeny class
Conductor 21462 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ -18063727223052 = -1 · 22 · 3 · 710 · 732 Discriminant
Eigenvalues 2+ 3-  0 7- -6  2 -4 -4 Hecke eigenvalues for primes up to 20
Equation [1,0,1,-516,-204578] [a1,a2,a3,a4,a6]
j -128787625/153539148 j-invariant
L 1.2463791332528 L(r)(E,1)/r!
Ω 0.31159478331321 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 64386cd2 3066b2 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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