Cremona's table of elliptic curves

28140 = 2² · 3 · 5 · 7 · 67

Class	r	Atkin-Lehner	Eigenvalues
28140a (2 curves)	0	2- 3+ 5+ 7+ 67+	2- 3+ 5+ 7+  2  0  2 -2
Curve Equation t 28140a1 [0,-1,0,-31421,-2133330] 2 28140a2 [0,-1,0,-31396,-2136920] 2
28140b (2 curves)	1	2- 3+ 5+ 7+ 67-	2- 3+ 5+ 7+ -2 -4  6  6
Curve Equation t Generators 28140b1 [0,-1,0,-816061,-283394414] 2 [35233298:599035476:29791] 28140b2 [0,-1,0,-703836,-364241304] 2 [132264096828708:2291919334943471:113099029056]
28140c (1 curve)	1	2- 3+ 5+ 7+ 67-	2- 3+ 5+ 7+ -5 -1 -6 -6
Curve Equation t Generators 28140c1 [0,-1,0,14,-35] 1 [3:5:1]
28140d (1 curve)	0	2- 3+ 5+ 7- 67-	2- 3+ 5+ 7-  3 -5  2  0
Curve Equation t 28140d1 [0,-1,0,-129766,-18015659] 1
28140e (2 curves)	0	2- 3+ 5+ 7- 67-	2- 3+ 5+ 7-  6 -2  8 -6
Curve Equation t 28140e1 [0,-1,0,-141,666] 2 28140e2 [0,-1,0,84,2376] 2
28140f (2 curves)	0	2- 3+ 5- 7- 67+	2- 3+ 5- 7-  2 -6  4 -2
Curve Equation t 28140f1 [0,-1,0,-7645,-254750] 2 28140f2 [0,-1,0,-7420,-270680] 2
28140g (1 curve)	1	2- 3+ 5- 7- 67-	2- 3+ 5- 7-  3 -1  2 -8
Curve Equation t Generators 28140g1 [0,-1,0,57150,-50785623] 1 [424:7035:1]
28140h (1 curve)	1	2- 3+ 5- 7- 67-	2- 3+ 5- 7- -3  0 -6  0
Curve Equation t Generators 28140h1 [0,-1,0,-5,-63] 1 [7:14:1]
28140i (2 curves)	1	2- 3- 5+ 7+ 67+	2- 3- 5+ 7+ -2 -2 -4  6
Curve Equation t Generators 28140i1 [0,1,0,-290981,31172400] 2 [842:10503:8] 28140i2 [0,1,0,974644,230634900] 2 [300842:-58360503:8]
28140j (2 curves)	1	2- 3- 5+ 7+ 67+	2- 3- 5+ 7+ -4  4 -6  6
Curve Equation t Generators 28140j1 [0,1,0,-621,3780] 2 [-3:75:1] 28140j2 [0,1,0,-8996,325380] 2 [52:30:1]
28140k (2 curves)	0	2- 3- 5+ 7- 67+	2- 3- 5+ 7-  0  6  6  2
Curve Equation t 28140k1 [0,1,0,-161,-840] 2 28140k2 [0,1,0,-236,-60] 2
28140l (1 curve)	1	2- 3- 5+ 7- 67-	2- 3- 5+ 7-  3  4  0 -6
Curve Equation t Generators 28140l1 [0,1,0,3219,35919] 1 [-3:162:1]
28140m (2 curves)	1	2- 3- 5+ 7- 67-	2- 3- 5+ 7- -3 -4  0  2
Curve Equation t Generators 28140m1 [0,1,0,-472781,124967439] 3 [397:42:1] 28140m2 [0,1,0,-199421,268002255] 1 [330:15435:1]
28140n (2 curves)	1	2- 3- 5+ 7- 67-	2- 3- 5+ 7- -3  5 -6  2
Curve Equation t Generators 28140n1 [0,1,0,-10066,-438655] 3 [122:405:1] 28140n2 [0,1,0,-842206,-297773131] 1 [1529:44625:1]
28140o (2 curves)	1	2- 3- 5+ 7- 67-	2- 3- 5+ 7-  4 -2 -2 -6
Curve Equation t Generators 28140o1 [0,1,0,-561,-936] 2 [-21:45:1] 28140o2 [0,1,0,-6636,-209916] 2 [-48:18:1]
28140p (4 curves)	1	2- 3- 5+ 7- 67-	2- 3- 5+ 7- -6  2  0  2
Curve Equation t Generators 28140p1 [0,1,0,-5584341,5077464084] 6 [-636:91500:1] 28140p2 [0,1,0,-5583716,5078658084] 6 [-1028:98658:1] 28140p3 [0,1,0,-5664981,4923185400] 2 [17793780:-461756763:8000] 28140p4 [0,1,0,4100644,20134122900] 2 [-125:140070:1]
28140q (1 curve)	1	2- 3- 5- 7+ 67-	2- 3- 5- 7+  1  5 -6 -8
Curve Equation t Generators 28140q1 [0,1,0,-190,4913] 1 [26:-135:1]
28140r (2 curves)	1	2- 3- 5- 7- 67+	2- 3- 5- 7- -2  6 -4 -2
Curve Equation t Generators 28140r1 [0,1,0,-1365,18900] 2 [15:45:1] 28140r2 [0,1,0,-740,36900] 2 [-20:210:1]
28140s (4 curves)	0	2- 3- 5- 7- 67-	2- 3- 5- 7-  0  2  6  2
Curve Equation t 28140s1 [0,1,0,-8785,-304192] 6 28140s2 [0,1,0,-25660,1194308] 6 28140s3 [0,1,0,-701785,-226518292] 2 28140s4 [0,1,0,-701860,-226467532] 2
28140t (2 curves)	0	2- 3- 5- 7- 67-	2- 3- 5- 7-  0  4 -2  2
Curve Equation t 28140t1 [0,1,0,-17365,-883600] 2 28140t2 [0,1,0,-25740,47700] 2

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