Cremona's table of elliptic curves

27900 = 2² · 3² · 5² · 31

Class	r	Atkin-Lehner	Eigenvalues
27900a (2 curves)	1	2- 3- 5+ 31+	2- 3- 5+  0  0  2 -4 -4
Curve Equation t Generators 27900a1 [0,0,0,3300,-158375] 2 [66:589:1] 27900a2 [0,0,0,-31575,-1867250] 2 [-85:450:1]
27900b (1 curve)	1	2- 3- 5+ 31+	2- 3- 5+  0  3 -4 -1  5
Curve Equation t Generators 27900b1 [0,0,0,-2460000,1477262500] 1 [224:30618:1]
27900c (1 curve)	1	2- 3- 5+ 31+	2- 3- 5+  2 -2 -2 -3 -3
Curve Equation t Generators 27900c1 [0,0,0,1800,-13500] 1 [40:350:1]
27900d (2 curves)	1	2- 3- 5+ 31+	2- 3- 5+  2  4  4  0  0
Curve Equation t Generators 27900d1 [0,0,0,-236700,-44310375] 2 [1234:39277:1] 27900d2 [0,0,0,-271575,-30395250] 2 [-165:3150:1]
27900e (2 curves)	1	2- 3- 5+ 31+	2- 3- 5+ -2  4 -4  4 -8
Curve Equation t Generators 27900e1 [0,0,0,-5700,-95875] 2 [431:8804:1] 27900e2 [0,0,0,-40575,3077750] 2 [-170:2250:1]
27900f (1 curve)	1	2- 3- 5+ 31+	2- 3- 5+ -3 -6  4  0 -5
Curve Equation t Generators 27900f1 [0,0,0,-3825,91125] 1 [36:9:1]
27900g (1 curve)	1	2- 3- 5+ 31+	2- 3- 5+ -4 -3  2 -3 -3
Curve Equation t Generators 27900g1 [0,0,0,-840,-2540] 1 [-19:81:1]
27900h (1 curve)	1	2- 3- 5+ 31+	2- 3- 5+  5 -2  4 -4 -5
Curve Equation t Generators 27900h1 [0,0,0,-525,-32875] 1 [49:243:1]
27900i (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+  1  0 -2  0 -1
Curve Equation t 27900i1 [0,0,0,-687225,230542625] 1 27900i2 [0,0,0,-56455725,163271392625] 1
27900j (1 curve)	0	2- 3- 5+ 31-	2- 3- 5+  1  0  6 -8  7
Curve Equation t 27900j1 [0,0,0,-1425,-23375] 1
27900k (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+  1  6 -2  6 -1
Curve Equation t 27900k1 [0,0,0,-525,-5875] 1 27900k2 [0,0,0,3975,57125] 1
27900l (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+  2  4  4  0  0
Curve Equation t 27900l1 [0,0,0,-32700,2239625] 2 27900l2 [0,0,0,-67575,-3375250] 2
27900m (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+  4  0 -2 -3 -7
Curve Equation t 27900m1 [0,0,0,-22800,-1325500] 1 27900m2 [0,0,0,13200,-4979500] 1
27900n (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+  4  0  4  3  2
Curve Equation t 27900n1 [0,0,0,20625,1493750] 1 27900n2 [0,0,0,-654375,204668750] 1
27900o (2 curves)	0	2- 3- 5+ 31-	2- 3- 5+ -4  0 -2  0  4
Curve Equation t 27900o1 [0,0,0,-2100,-50875] 2 27900o2 [0,0,0,-36975,-2736250] 2
27900p (1 curve)	0	2- 3- 5- 31+	2- 3- 5-  0  3  4  1  5
Curve Equation t 27900p1 [0,0,0,-98400,11818100] 1
27900q (1 curve)	0	2- 3- 5- 31+	2- 3- 5-  4 -3 -2  3 -3
Curve Equation t 27900q1 [0,0,0,-21000,-317500] 1
27900r (2 curves)	1	2- 3- 5- 31-	2- 3- 5-  4 -4  2 -6  4
Curve Equation t Generators 27900r1 [0,0,0,-480,3625] 2 [6:31:1] 27900r2 [0,0,0,-7455,247750] 2 [51:14:1]
27900s (2 curves)	1	2- 3- 5- 31-	2- 3- 5- -4  0 -4 -3  2
Curve Equation t Generators 27900s1 [0,0,0,825,11950] 1 [14:162:1] 27900s2 [0,0,0,-26175,1637350] 3 [95:90:1]
27900t (2 curves)	1	2- 3- 5- 31-	2- 3- 5- -4 -4 -2  6  4
Curve Equation t Generators 27900t1 [0,0,0,-12000,453125] 2 [-1:682:1] 27900t2 [0,0,0,-186375,30968750] 2 [2242:6919:8]

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