Cremona's table of elliptic curves

Curve 28224cs1

28224 = 26 · 32 · 72



Data for elliptic curve 28224cs1

Field Data Notes
Atkin-Lehner 2+ 3- 7- Signs for the Atkin-Lehner involutions
Class 28224cs Isogeny class
Conductor 28224 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 368640 Modular degree for the optimal curve
Δ 111173789559849408 = 26 · 316 · 79 Discriminant
Eigenvalues 2+ 3-  4 7- -2 -2  0 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-165963,20490820] [a1,a2,a3,a4,a6]
Generators [505120:138776085:32768] Generators of the group modulo torsion
j 92100460096/20253807 j-invariant
L 7.1814889520347 L(r)(E,1)/r!
Ω 0.31465370283819 Real period
R 5.7058671860981 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 28224cr1 14112ci2 9408bl1 4032q1 Quadratic twists by: -4 8 -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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