Cremona's table of elliptic curves

Conductor 20590

20590 = 2 · 5 · 29 · 71

Isogeny classes of curves of conductor 20590 [newforms of level 20590]

Class r Atkin-Lehner Eigenvalues
20590a (1 curve) 1 2+ 5+ 29+ 71+ 2+  1 5+  3  4 -5 -2  5
20590b (2 curves) 0 2+ 5+ 29- 71+ 2+  0 5+  0 -2 -2  0  4
20590c (2 curves) 0 2+ 5+ 29- 71+ 2+  1 5+ -1  0 -1 -6  5
20590d (1 curve) 1 2+ 5+ 29- 71- 2+  1 5+  5 -4  1 -2  1

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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