Cremona's table of elliptic curves

Curve 38808u1

38808 = 23 · 32 · 72 · 11



Data for elliptic curve 38808u1

Field Data Notes
Atkin-Lehner 2+ 3- 7- 11+ Signs for the Atkin-Lehner involutions
Class 38808u Isogeny class
Conductor 38808 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 40960 Modular degree for the optimal curve
Δ -278836411392 = -1 · 210 · 38 · 73 · 112 Discriminant
Eigenvalues 2+ 3-  2 7- 11+ -4 -2 -2 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-1659,36358] [a1,a2,a3,a4,a6]
Generators [14:126:1] Generators of the group modulo torsion
j -1972156/1089 j-invariant
L 6.1478284291134 L(r)(E,1)/r!
Ω 0.90720945269602 Real period
R 1.6941590530284 Regulator
r 1 Rank of the group of rational points
S 1.0000000000003 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 77616ci1 12936ba1 38808w1 Quadratic twists by: -4 -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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