Cremona's table of elliptic curves

39990 = 2 · 3 · 5 · 31 · 43

Class	r	Atkin-Lehner	Eigenvalues
39990a (2 curves)	1	2+ 3+ 5+ 31+ 43+	2+ 3+ 5+  2 -4  6 -2 -2
Curve Equation t Generators 39990a1 [1,1,0,-2663,106293] 2 [103:917:1] 39990a2 [1,1,0,-53863,4785973] 2 [123:140:1]
39990b (2 curves)	1	2+ 3+ 5+ 31+ 43+	2+ 3+ 5+ -4  4 -4  0 -2
Curve Equation t Generators 39990b1 [1,1,0,1312,-76032] 2 [63:480:1] 39990b2 [1,1,0,-21008,-1098288] 2 [-76:296:1]
39990c (2 curves)	1	2+ 3+ 5+ 31- 43-	2+ 3+ 5+  4 -4  0  4 -6
Curve Equation t Generators 39990c1 [1,1,0,-298,12628] 2 [3:107:1] 39990c2 [1,1,0,-10218,391572] 2 [44:150:1]
39990d (2 curves)	2	2+ 3+ 5- 31+ 43+	2+ 3+ 5- -2  0 -2 -8  2
Curve Equation t Generators 39990d1 [1,1,0,-232,64] 2 [-66:343:8]&[-7:41:1] 39990d2 [1,1,0,-2712,53136] 2 [-60:96:1]&[-23:334:1]
39990e (2 curves)	1	2+ 3+ 5- 31- 43+	2+ 3+ 5-  0 -6  2  0  4
Curve Equation t Generators 39990e1 [1,1,0,37029453,532171404909] 2 [739092:100825149:64] 39990e2 [1,1,0,-801831347,8284755146349] 2 [18626152737620:685787674880717:895841344]
39990f (4 curves)	1	2+ 3- 5+ 31- 43+	2+ 3- 5+ -4  0 -2 -6 -4
Curve Equation t Generators 39990f1 [1,0,1,-315669319,2148525798026] 2 [9286:129416:1] 39990f2 [1,0,1,-5044096839,137886548929162] 4 [-1657:12093804:1] 39990f3 [1,0,1,-5037485159,138266051427146] 2 [-1626:12102577:1] 39990f4 [1,0,1,-80705548839,8824759440533962] 2 [56258090:-28127961:343]
39990g (2 curves)	1	2+ 3- 5- 31+ 43+	2+ 3- 5- -2 -2 -2 -8  6
Curve Equation t Generators 39990g1 [1,0,1,-13674283,19238288918] 2 [-2486:195845:1] 39990g2 [1,0,1,-25975083,-20699948522] 2 [-2998:175365:1]
39990h (2 curves)	0	2+ 3- 5- 31- 43+	2+ 3- 5-  2  0  2  2  4
Curve Equation t 39990h1 [1,0,1,-6948,-223262] 2 39990h2 [1,0,1,-5228,-336094] 2
39990i (2 curves)	1	2+ 3- 5- 31- 43-	2+ 3- 5-  2  0 -2  0  6
Curve Equation t Generators 39990i1 [1,0,1,-8088,200038] 2 [104:-750:1] 39990i2 [1,0,1,-47768,-3863194] 2 [-135:427:1]
39990j (2 curves)	1	2+ 3- 5- 31- 43-	2+ 3- 5- -2 -4  2  0  6
Curve Equation t Generators 39990j1 [1,0,1,-6003,163006] 2 [10:-328:1] 39990j2 [1,0,1,-21503,-1033594] 2 [180:877:1]
39990k (2 curves)	1	2- 3+ 5+ 31+ 43-	2- 3+ 5+  0  0  2  6 -6
Curve Equation t Generators 39990k1 [1,1,1,-446,6743] 2 [-154:817:8] 39990k2 [1,1,1,-8816,314759] 2 [1574:19201:8]
39990l (1 curve)	1	2- 3+ 5+ 31+ 43-	2- 3+ 5+  0  2  3  2 -1
Curve Equation t Generators 39990l1 [1,1,1,-131796,51316629] 1 [429:8385:1]
39990m (2 curves)	1	2- 3+ 5+ 31+ 43-	2- 3+ 5+ -2 -2  2  4  2
Curve Equation t Generators 39990m1 [1,1,1,-51256,-4487047] 2 [-131:93:1] 39990m2 [1,1,1,-820056,-286175367] 2 [1057:4889:1]
39990n (2 curves)	1	2- 3+ 5+ 31+ 43-	2- 3+ 5+  4  0 -2  0 -6
Curve Equation t Generators 39990n1 [1,1,1,-3093471,-1837498107] 2 [-1221:11618:1] 39990n2 [1,1,1,4842529,-9706835707] 2 [1879:76718:1]
39990o (2 curves)	1	2- 3+ 5+ 31- 43+	2- 3+ 5+ -2 -2 -2 -8  6
Curve Equation t Generators 39990o1 [1,1,1,-87916,9011213] 2 [-83:4009:1] 39990o2 [1,1,1,-1367916,615219213] 2 [-323:32153:1]
39990p (2 curves)	0	2- 3+ 5+ 31- 43-	2- 3+ 5+  2  0 -2 -6 -4
Curve Equation t 39990p1 [1,1,1,-1361846,611134643] 2 39990p2 [1,1,1,-1354966,617623859] 2
39990q (2 curves)	0	2- 3+ 5+ 31- 43-	2- 3+ 5+  2  2  2  4 -2
Curve Equation t 39990q1 [1,1,1,-2586,49539] 2 39990q2 [1,1,1,-2636,47459] 2
39990r (2 curves)	0	2- 3+ 5+ 31- 43-	2- 3+ 5+  2 -4  2  4 -2
Curve Equation t 39990r1 [1,1,1,-8041581,3814327203] 2 39990r2 [1,1,1,-107241581,427160247203] 2
39990s (2 curves)	0	2- 3+ 5+ 31- 43-	2- 3+ 5+ -2  2 -6  4  6
Curve Equation t 39990s1 [1,1,1,-10916,-120091] 2 39990s2 [1,1,1,-135916,-19320091] 2
39990t (2 curves)	1	2- 3+ 5- 31+ 43+	2- 3+ 5-  2 -4  2 -6 -2
Curve Equation t Generators 39990t1 [1,1,1,30,495] 2 [3:23:1] 39990t2 [1,1,1,-770,7535] 2 [5:59:1]
39990u (4 curves)	1	2- 3+ 5- 31+ 43+	2- 3+ 5- -4  4 -2  2  0
Curve Equation t Generators 39990u1 [1,1,1,-20750,1157435] 4 [89:115:1] 39990u2 [1,1,1,-333250,73907435] 4 [2414:6539:8] 39990u3 [1,1,1,-334500,73323435] 2 [2350:4587:8] 39990u4 [1,1,1,-5332000,4736741435] 2 [10670:-4833:8]
39990v (4 curves)	0	2- 3+ 5- 31+ 43-	2- 3+ 5-  0  4 -6 -2  0
Curve Equation t 39990v1 [1,1,1,-1255,-17635] 2 39990v2 [1,1,1,-1335,-15363] 4 39990v3 [1,1,1,2965,-89323] 2 39990v4 [1,1,1,-6915,205605] 4
39990w (2 curves)	0	2- 3+ 5- 31- 43+	2- 3+ 5-  4  4  4  4  6
Curve Equation t 39990w1 [1,1,1,-260,-4363] 2 39990w2 [1,1,1,-5840,-173995] 2
39990x (4 curves)	1	2- 3+ 5- 31- 43-	2- 3+ 5- -4  4 -6  2 -4
Curve Equation t Generators 39990x1 [1,1,1,75,-369573] 4 [8070:252393:8] 39990x2 [1,1,1,-76805,-8088325] 4 [2469:120670:1] 39990x3 [1,1,1,-160505,12568835] 2 [849037:41288750:343] 39990x4 [1,1,1,-1223185,-521208013] 2 [321955:14321274:125]
39990y (2 curves)	1	2- 3- 5+ 31+ 43+	2- 3- 5+ -2  0  2  0 -2
Curve Equation t Generators 39990y1 [1,0,0,-1251,-7695] 2 [-24:105:1] 39990y2 [1,0,0,-16751,-835395] 2 [-74:55:1]
39990z (2 curves)	0	2- 3- 5+ 31- 43+	2- 3- 5+  2  4  6  2  4
Curve Equation t 39990z1 [1,0,0,-8851,-318175] 2 39990z2 [1,0,0,-1971,-798399] 2
39990ba (4 curves)	1	2- 3- 5- 31+ 43-	2- 3- 5-  0  4 -2 -2 -4
Curve Equation t Generators 39990ba1 [1,0,0,50,-268] 2 [94:868:1] 39990ba2 [1,0,0,-450,-3168] 4 [2568:23116:27] 39990ba3 [1,0,0,-2000,31242] 2 [1286:15095:8] 39990ba4 [1,0,0,-6900,-221178] 2 [-10867419010:5081856653:226981000]
39990bb (2 curves)	1	2- 3- 5- 31+ 43-	2- 3- 5- -4 -4  4  4 -2
Curve Equation t Generators 39990bb1 [1,0,0,-205990,40911332] 2 [-148:8330:1] 39990bb2 [1,0,0,-3420070,2434115300] 2 [1010:2720:1]

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