Cremona's table of elliptic curves

74420 = 2² · 5 · 61²

Class	r	Atkin-Lehner	Eigenvalues
74420a (1 curve)	0	2- 5+ 61+	2-  0 5+  2  3  6  8  1
Curve Equation t 74420a1 [0,0,0,-1815848,941517188] 1
74420b (1 curve)	2	2- 5+ 61+	2-  0 5+ -2 -3  6 -8  1
Curve Equation t Generators 74420b1 [0,0,0,-488,4148] 1 [-19:81:1]&[13:1:1]
74420c (2 curves)	0	2- 5+ 61+	2-  0 5+ -2  6  6 -2  4
Curve Equation t 74420c1 [0,0,0,-1890268,-1000305267] 2 74420c2 [0,0,0,-1871663,-1020960538] 2
74420d (4 curves)	0	2- 5+ 61+	2- -2 5+ -2  0  2  6 -4
Curve Equation t 74420d1 [0,1,0,-4961,90820] 2 74420d2 [0,1,0,13644,626644] 2 74420d3 [0,1,0,-153801,-23262176] 2 74420d4 [0,1,0,-135196,-29081820] 2
74420e (1 curve)	1	2- 5- 61+	2- -1 5-  0  6  0  0  2
Curve Equation t Generators 74420e1 [0,-1,0,-75660,595909192] 1 [-22317:260470:27]
74420f (1 curve)	1	2- 5- 61+	2- -1 5-  0 -6  0  0  2
Curve Equation t Generators 74420f1 [0,-1,0,-20,2632] 1 [-6:50:1]

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