Cremona's table of elliptic curves

Conductor 21538

21538 = 2 · 112 · 89



Isogeny classes of curves of conductor 21538 [newforms of level 21538]

Class r Atkin-Lehner Eigenvalues
21538a (2 curves) 0 2+ 11- 89+ 2+  1  3  4 11- -2 -3 -5
21538b (4 curves) 1 2+ 11- 89- 2+  0 -2  0 11- -2 -2  0
21538c (2 curves) 0 2- 11- 89- 2-  2  2  0 11-  4 -2  2


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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