Cremona's table of elliptic curves

Conductor 19856

19856 = 2⁴ · 17 · 73

Isogeny classes of curves of conductor 19856 [newforms of level 19856]

Class

r

Atkin-Lehner

Eigenvalues

19856a (1 curve)

1

²+ ¹⁷+ ⁷³+

²+ 2 0 0 5 1 ¹⁷+ 1

19856b (2 curves)

1

²+ ¹⁷- ⁷³-

²+ 2 2 0 0 -2 ¹⁷- 4

19856c (2 curves)

1

²- ¹⁷+ ⁷³-

²- 0 0 0 2 4 ¹⁷+ 0

19856d (1 curve)

1

²- ¹⁷+ ⁷³-

²- 0 -2 -2 -5 -7 ¹⁷+ 7

19856e (2 curves)

1

²- ¹⁷+ ⁷³-

²- 0 -2 4 4 -4 ¹⁷+ 4

19856f (2 curves)

1

²- ¹⁷+ ⁷³-

²- 2 -2 0 4 -4 ¹⁷+ 8

19856g (2 curves)

0

²- ¹⁷- ⁷³-

²- 2 0 4 3 5 ¹⁷- 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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