Cremona's table of elliptic curves

Curve 31680bm2

31680 = 26 · 32 · 5 · 11



Data for elliptic curve 31680bm2

Field Data Notes
Atkin-Lehner 2+ 3- 5- 11+ Signs for the Atkin-Lehner involutions
Class 31680bm Isogeny class
Conductor 31680 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ -7390310400 = -1 · 212 · 38 · 52 · 11 Discriminant
Eigenvalues 2+ 3- 5- -4 11+  0  2 -2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,348,-3296] [a1,a2,a3,a4,a6]
Generators [20:108:1] Generators of the group modulo torsion
j 1560896/2475 j-invariant
L 4.7682795455372 L(r)(E,1)/r!
Ω 0.69756703672192 Real period
R 1.7088965269721 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 31680bw2 15840o1 10560w2 Quadratic twists by: -4 8 -3


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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