Cremona's table of elliptic curves

20787 = 3 · 13² · 41

Class	r	Atkin-Lehner	Eigenvalues
20787a (1 curve)	1	3+ 13+ 41+	-1 3+  1 -2 -1 13+ -1  0
Curve Equation t Generators 20787a1 [1,1,1,-53830,1079684] 1 [-242:205:1]
20787b (1 curve)	0	3+ 13+ 41-	0 3+  2  4 -5 13+ -5  2
Curve Equation t 20787b1 [0,-1,1,113,-1116] 1
20787c (1 curve)	0	3+ 13+ 41-	1 3+  3  2  1 13+  3 -4
Curve Equation t 20787c1 [1,1,0,-1186,-15647] 1
20787d (1 curve)	0	3+ 13+ 41-	2 3+  4 -2  5 13+ -7  0
Curve Equation t 20787d1 [0,-1,1,-1606809806,-24790508840251] 1
20787e (1 curve)	0	3+ 13+ 41-	-2 3+  0  2  1 13+ -3 -4
Curve Equation t 20787e1 [0,-1,1,45912,3763190] 1
20787f (2 curves)	0	3- 13+ 41+	2 3-  4  2  3 13+  3  0
Curve Equation t 20787f1 [0,1,1,-1746,29423] 1 20787f2 [0,1,1,3324,-1968157] 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
Back to Tables and computations