Cremona's table of elliptic curves

21090 = 2 · 3 · 5 · 19 · 37

Class	r	Atkin-Lehner	Eigenvalues
21090a (1 curve)	0	2+ 3+ 5+ 19+ 37-	2+ 3+ 5+  2  0  0  5 19+
Curve Equation t 21090a1 [1,1,0,-9528,-365022] 1
21090b (2 curves)	0	2+ 3+ 5+ 19- 37+	2+ 3+ 5+  2  4  2  4 19-
Curve Equation t 21090b1 [1,1,0,-2023,-81983] 2 21090b2 [1,1,0,-43093,-3457937] 2
21090c (2 curves)	0	2+ 3- 5+ 19- 37-	2+ 3- 5+  2  6  2 -3 19-
Curve Equation t 21090c1 [1,0,1,29681936,-61575393664] 3 21090c2 [1,0,1,-782340229,-8485416136648] 1
21090d (2 curves)	1	2+ 3- 5- 19- 37-	2+ 3- 5-  2  0 -4 -3 19-
Curve Equation t Generators 21090d1 [1,0,1,-532073,149339756] 3 [630:7702:1] 21090d2 [1,0,1,-505448,164961206] 1 [380:5082:1]
21090e (1 curve)	2	2- 3+ 5+ 19+ 37+	2- 3+ 5+ -3 -3 -4 -7 19+
Curve Equation t Generators 21090e1 [1,1,1,-34971,2502633] 1 [-91:2268:1]&[-53:2078:1]
21090f (1 curve)	0	2- 3+ 5+ 19- 37-	2- 3+ 5+ -2 -2  6  7 19-
Curve Equation t 21090f1 [1,1,1,-31,-11731] 1
21090g (1 curve)	2	2- 3+ 5- 19+ 37-	2- 3+ 5- -5 -3 -4 -7 19+
Curve Equation t Generators 21090g1 [1,1,1,-1520,337745] 1 [-75:229:1]&[-67:413:1]
21090h (1 curve)	1	2- 3+ 5- 19- 37-	2- 3+ 5- -1  5  4 -3 19-
Curve Equation t Generators 21090h1 [1,1,1,65,4295] 1 [-50:507:8]
21090i (2 curves)	1	2- 3+ 5- 19- 37-	2- 3+ 5-  2 -4 -2  6 19-
Curve Equation t Generators 21090i1 [1,1,1,645,-19575] 2 [43:278:1] 21090i2 [1,1,1,-8235,-264663] 2 [-63:126:1]
21090j (1 curve)	1	2- 3+ 5- 19- 37-	2- 3+ 5- -2 -4  0  3 19-
Curve Equation t Generators 21090j1 [1,1,1,-105,375] 1 [3:8:1]
21090k (2 curves)	1	2- 3+ 5- 19- 37-	2- 3+ 5- -2 -4  6 -6 19-
Curve Equation t Generators 21090k1 [1,1,1,150035,50083475] 2 [1609:65980:1] 21090k2 [1,1,1,-1468345,594506507] 2 [-113:27606:1]
21090l (4 curves)	1	2- 3- 5+ 19+ 37+	2- 3- 5+  0  0  2  2 19+
Curve Equation t Generators 21090l1 [1,0,0,-18136,-940480] 2 [-76:56:1] 21090l2 [1,0,0,-23256,-368064] 4 [-90:1044:1] 21090l3 [1,0,0,89224,-2865120] 2 [214:4996:1] 21090l4 [1,0,0,-217656,38784096] 2 [378:3060:1]
21090m (1 curve)	0	2- 3- 5+ 19- 37+	2- 3- 5+ -2 -6  2  5 19-
Curve Equation t 21090m1 [1,0,0,-28209251,-57671355519] 1
21090n (4 curves)	0	2- 3- 5+ 19- 37+	2- 3- 5+  4  0  2  2 19-
Curve Equation t 21090n1 [1,0,0,-241,1385] 2 21090n2 [1,0,0,-561,-3159] 4 21090n3 [1,0,0,1719,-21855] 2 21090n4 [1,0,0,-7961,-273999] 2
21090o (4 curves)	1	2- 3- 5+ 19- 37-	2- 3- 5+ -4  0  2  0 19-
Curve Equation t Generators 21090o1 [1,0,0,-54066,10757700] 6 [-204:3750:1] 21090o2 [1,0,0,-1132986,463688316] 6 [630:-84:1] 21090o3 [1,0,0,469194,-236830464] 2 [984:33828:1] 21090o4 [1,0,0,-4089576,-2688536970] 2 [2503590:-53852343:1000]
21090p (1 curve)	1	2- 3- 5- 19+ 37-	2- 3- 5- -2  2 -2 -5 19+
Curve Equation t Generators 21090p1 [1,0,0,1170,-17148] 1 [104:1058:1]
21090q (2 curves)	1	2- 3- 5- 19+ 37-	2- 3- 5- -2 -4 -2 -2 19+
Curve Equation t Generators 21090q1 [1,0,0,-590,-5628] 2 [52:298:1] 21090q2 [1,0,0,-9470,-355500] 2 [126:612:1]
21090r (1 curve)	1	2- 3- 5- 19- 37+	2- 3- 5- -2  0 -4 -3 19-
Curve Equation t Generators 21090r1 [1,0,0,-1460,-40200] 1 [310:5260:1]

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

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