Cremona's table of elliptic curves

Curve 21175a1

21175 = 52 · 7 · 112



Data for elliptic curve 21175a1

Field Data Notes
Atkin-Lehner 5+ 7+ 11+ Signs for the Atkin-Lehner involutions
Class 21175a Isogeny class
Conductor 21175 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 6912 Modular degree for the optimal curve
Δ 727890625 = 57 · 7 · 113 Discriminant
Eigenvalues  1  0 5+ 7+ 11+ -4  0 -4 Hecke eigenvalues for primes up to 20
Equation [1,-1,0,-292,1491] [a1,a2,a3,a4,a6]
Generators [114:1143:1] Generators of the group modulo torsion
j 132651/35 j-invariant
L 4.7417690860802 L(r)(E,1)/r!
Ω 1.4988963802868 Real period
R 3.1635069297938 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 4235f1 21175l1 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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