Cremona's table of elliptic curves

Curve 21175i4

21175 = 52 · 7 · 112



Data for elliptic curve 21175i4

Field Data Notes
Atkin-Lehner 5+ 7+ 11- Signs for the Atkin-Lehner involutions
Class 21175i Isogeny class
Conductor 21175 Conductor
∏ cp 4 Product of Tamagawa factors cp
Δ 53285233203125 = 58 · 7 · 117 Discriminant
Eigenvalues -1  0 5+ 7+ 11- -6  6  4 Hecke eigenvalues for primes up to 20
Equation [1,-1,1,-31056730,-66608718228] [a1,a2,a3,a4,a6]
j 119678115308998401/1925 j-invariant
L 1.0232472987242 L(r)(E,1)/r!
Ω 0.063952956170265 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 16 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 4235g3 1925e4 Quadratic twists by: 5 -11


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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