Cremona's table of elliptic curves

20604 = 2² · 3 · 17 · 101

Class	r	Atkin-Lehner	Eigenvalues
20604a (2 curves)	1	2- 3+ 17+ 101-	2- 3+  2  4  4 -2 17+ -4
Curve Equation t Generators 20604a1 [0,-1,0,-297,2070] 2 [-6:60:1] 20604a2 [0,-1,0,-212,3192] 2 [-316:4095:64]
20604b (2 curves)	1	2- 3+ 17+ 101-	2- 3+ -2  4  0  2 17+  4
Curve Equation t Generators 20604b1 [0,-1,0,-569,5418] 2 [13:7:1] 20604b2 [0,-1,0,-524,6264] 2 [-10:102:1]
20604c (1 curve)	1	2- 3+ 17- 101+	2- 3+ -3  2 -1 -1 17-  1
Curve Equation t Generators 20604c1 [0,-1,0,-8517,-392751] 1 [986:5151:8]

Data from Elliptic Curve Data by J. E. Cremona.
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