Cremona's table of elliptic curves

4240 = 2⁴ · 5 · 53

Class	r	Atkin-Lehner	Eigenvalues
4240a (1 curve)	1	2+ 5- 53-	2+  1 5- -2  0  1 -5  5
Curve Equation t Generators 4240a1 [0,1,0,-40,100] 1 [0:10:1]
4240b (2 curves)	0	2- 5+ 53+	2-  0 5+ -2  0 -6 -6  2
Curve Equation t 4240b1 [0,0,0,-2203,-39798] 2 4240b2 [0,0,0,-2123,-42822] 2
4240c (1 curve)	1	2- 5+ 53-	2-  1 5+  2  4 -3 -1  1
Curve Equation t Generators 4240c1 [0,1,0,144,-556] 1 [4:10:1]
4240d (1 curve)	1	2- 5+ 53-	2- -1 5+  2  2  5 -7 -7
Curve Equation t Generators 4240d1 [0,-1,0,44,-100] 1 [13:50:1]
4240e (2 curves)	1	2- 5+ 53-	2- -1 5+ -2  0  5  3 -5
Curve Equation t Generators 4240e1 [0,-1,0,-216,12016] 1 [66:530:1] 4240e2 [0,-1,0,-46856,3919600] 1 [138:250:1]
4240f (2 curves)	0	2- 5- 53-	2-  0 5-  2  0 -2 -6  2
Curve Equation t 4240f1 [0,0,0,-67,66] 2 4240f2 [0,0,0,253,514] 2
4240g (1 curve)	0	2- 5- 53-	2-  3 5-  2  0  1  3 -1
Curve Equation t 4240g1 [0,0,0,19613,-1976734] 1

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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