Cremona's table of elliptic curves
Conductor 20856
20856 = 2
3
· 3 · 11 · 79
Isogeny classes of curves of conductor 20856
[newforms of level 20856]
Class
r
Atkin-Lehner
Eigenvalues
20856a
(1 curve)
0
2
-
3
-
11
-
79
+
2
-
3
-
1
0
11
-
-1
6
1
Curve
Equation
t
20856a1
[0,1,0,960,7392]
1
20856b
(4 curves)
0
2
-
3
-
11
-
79
+
2
-
3
-
-2
0
11
-
-2
6
-4
Curve
Equation
t
20856b1
[0,1,0,76,2496]
4
20856b2
[0,1,0,-2344,41216]
4
20856b3
[0,1,0,-6304,-139360]
2
20856b4
[0,1,0,-37104,2738592]
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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