Cremona's table of elliptic curves

2340 = 2² · 3² · 5 · 13

Class	r	Atkin-Lehner	Eigenvalues
2340a (1 curve)	0	2- 3+ 5+ 13+	2- 3+ 5+ -1  1 13+  5  0
Curve Equation t 2340a1 [0,0,0,432,21492] 1
2340b (2 curves)	1	2- 3+ 5+ 13-	2- 3+ 5+  0 -6 13-  4  4
Curve Equation t Generators 2340b1 [0,0,0,12,-63] 2 [6:15:1] 2340b2 [0,0,0,-183,-882] 2 [-9:6:1]
2340c (1 curve)	1	2- 3+ 5- 13+	2- 3+ 5- -1 -1 13+ -5  0
Curve Equation t Generators 2340c1 [0,0,0,48,-796] 1 [28:-150:1]
2340d (2 curves)	0	2- 3+ 5- 13-	2- 3+ 5-  0  6 13- -4  4
Curve Equation t 2340d1 [0,0,0,108,1701] 2 2340d2 [0,0,0,-1647,23814] 2
2340e (2 curves)	1	2- 3- 5+ 13+	2- 3- 5+ -2  2 13+  2 -2
Curve Equation t Generators 2340e1 [0,0,0,-948,-11203] 2 [91:810:1] 2340e2 [0,0,0,-543,-20842] 2 [86:754:1]
2340f (1 curve)	0	2- 3- 5+ 13-	2- 3- 5+  3 -1 13-  3 -2
Curve Equation t 2340f1 [0,0,0,1752,5289572] 1
2340g (2 curves)	0	2- 3- 5- 13+	2- 3- 5-  2 -4 13+ -2  0
Curve Equation t 2340g1 [0,0,0,-2532,-49039] 2 2340g2 [0,0,0,-2487,-50866] 2
2340h (2 curves)	0	2- 3- 5- 13+	2- 3- 5- -2  6 13+  2 -2
Curve Equation t 2340h1 [0,0,0,-732,-731] 2 2340h2 [0,0,0,2913,-5834] 2
2340i (2 curves)	1	2- 3- 5- 13-	2- 3- 5- -1 -3 13- -3  2
Curve Equation t Generators 2340i1 [0,0,0,168,-236] 1 [5:27:1] 2340i2 [0,0,0,-1992,39076] 3 [-40:234:1]

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

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