Cremona's table of elliptic curves

89680 = 2⁴ · 5 · 19 · 59

Class	r	Atkin-Lehner	Eigenvalues
89680a (2 curves)	2	2+ 5- 19+ 59+	2+ -2 5-  0 -4  2 -6 19+
Curve Equation t Generators 89680a1 [0,1,0,-360,2500] 2 [-22:16:1]&[0:50:1] 89680a2 [0,1,0,-160,5460] 2 [-2:76:1]&[28:154:1]
89680b (2 curves)	1	2+ 5- 19+ 59-	2+  0 5-  2  2  2  6 19+
Curve Equation t Generators 89680b1 [0,0,0,73,-74] 2 [3770:21492:125] 89680b2 [0,0,0,-307,-606] 2 [123:1350:1]
89680c (4 curves)	1	2+ 5- 19- 59+	2+  0 5-  0  0 -6  2 19-
Curve Equation t Generators 89680c1 [0,0,0,-407,3094] 2 [18:40:1] 89680c2 [0,0,0,-907,-6006] 4 [38:120:1] 89680c3 [0,0,0,2893,-43246] 2 [570:4456:27] 89680c4 [0,0,0,-12707,-551166] 2 [510:11208:1]
89680d (4 curves)	1	2+ 5- 19- 59+	2+  0 5-  4 -4  2 -6 19-
Curve Equation t Generators 89680d1 [0,0,0,-16202,-780921] 2 [7221:101080:27] 89680d2 [0,0,0,-33607,1192806] 4 [1017:31920:1] 89680d3 [0,0,0,113893,8833306] 2 [97:4560:1] 89680d4 [0,0,0,-459587,119870834] 4 [2203:98990:1]
89680e (2 curves)	0	2+ 5- 19- 59-	2+  2 5- -4  0  6 -6 19-
Curve Equation t 89680e1 [0,-1,0,-375,2882] 2 89680e2 [0,-1,0,-5980,180000] 2
89680f (2 curves)	1	2- 5- 19+ 59+	2-  2 5-  0  0 -2  2 19+
Curve Equation t Generators 89680f1 [0,-1,0,-480,-3328] 2 [389:7650:1] 89680f2 [0,-1,0,-2080,33792] 2 [-48:144:1]
89680g (4 curves)	1	2- 5- 19+ 59+	2-  2 5-  4  0  2 -6 19+
Curve Equation t Generators 89680g1 [0,-1,0,-1343400,-596890000] 2 [176822685300:13409972172800:29503629] 89680g2 [0,-1,0,-1983400,30822000] 2 [642540:98945920:27] 89680g3 [0,-1,0,-7125400,6858255600] 2 [49598989229965299987171555499260:3570969009108556642882773082701824:8051179372427759564935279125] 89680g4 [0,-1,0,-111983000,456152100080] 2 [1159976209821845156:793363611391057920:188832724675811]
89680h (2 curves)	0	2- 5- 19+ 59-	2- -2 5- -4  4  6  2 19+
Curve Equation t 89680h1 [0,1,0,-800,2548] 2 89680h2 [0,1,0,-7200,-235532] 2
89680i (2 curves)	0	2- 5- 19- 59+	2-  0 5-  2  2  2 -2 19-
Curve Equation t 89680i1 [0,0,0,-2279747,-1446439614] 2 89680i2 [0,0,0,-37397827,-88026554046] 2
89680j (2 curves)	2	2- 5- 19- 59+	2-  0 5- -4 -4  2 -2 19-
Curve Equation t Generators 89680j1 [0,0,0,-108227,9585346] 2 [-353:1950:1]&[-153:4750:1] 89680j2 [0,0,0,291773,63905346] 2 [-175:2736:1]&[167:10830:1]

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