Cremona's table of elliptic curves

27664 = 2⁴ · 7 · 13 · 19

Class	r	Atkin-Lehner	Eigenvalues
27664a (1 curve)	1	2+ 7+ 13+ 19+	2+ -2 -2 7+  0 13+  3 19+
Curve Equation t Generators 27664a1 [0,1,0,-62564,-6044213] 1 [22564:254765:64]
27664b (1 curve)	0	2+ 7+ 13+ 19-	2+ -2  3 7+ -5 13+ -2 19-
Curve Equation t 27664b1 [0,1,0,-282584,-58454012] 1
27664c (1 curve)	2	2+ 7+ 13- 19+	2+  0  0 7+ -2 13- -1 19+
Curve Equation t Generators 27664c1 [0,0,0,25,-271] 1 [8:21:1]&[16:65:1]
27664d (1 curve)	0	2+ 7- 13+ 19+	2+  1  4 7- -3 13+  2 19+
Curve Equation t 27664d1 [0,1,0,-456,-6508] 1
27664e (1 curve)	0	2+ 7- 13+ 19+	2+ -2 -2 7-  0 13+ -1 19+
Curve Equation t 27664e1 [0,1,0,-182684,29999035] 1
27664f (1 curve)	0	2+ 7- 13+ 19+	2+ -2  3 7-  5 13+ -6 19+
Curve Equation t 27664f1 [0,1,0,-2744,-56252] 1
27664g (1 curve)	0	2+ 7- 13- 19-	2+  2 -1 7-  5 13-  2 19-
Curve Equation t 27664g1 [0,-1,0,-176,-1168] 1
27664h (2 curves)	0	2- 7+ 13+ 19+	2-  0  0 7+ -4 13+  2 19+
Curve Equation t 27664h1 [0,0,0,-16000,778983] 2 27664h2 [0,0,0,-15935,785626] 2
27664i (1 curve)	0	2- 7+ 13+ 19+	2-  0  4 7+  2 13+  3 19+
Curve Equation t 27664i1 [0,0,0,-6653,1899375] 1
27664j (1 curve)	1	2- 7+ 13- 19+	2-  0 -1 7+ -1 13- -4 19+
Curve Equation t Generators 27664j1 [0,0,0,-6683,-233014] 1 [15395:112642:125]
27664k (3 curves)	1	2- 7+ 13- 19+	2- -1  0 7+ -3 13- -6 19+
Curve Equation t Generators 27664k1 [0,-1,0,-13928,-1993232] 1 [362:6346:1] 27664k2 [0,-1,0,123272,49067120] 1 [3154:178334:1] 27664k3 [0,-1,0,-7356648,7691038576] 1 [1482:-6422:1]
27664l (3 curves)	1	2- 7+ 13- 19+	2-  2 -3 7+  3 13-  6 19+
Curve Equation t Generators 27664l1 [0,-1,0,-512,-65536] 1 [87494:565542:1331] 27664l2 [0,-1,0,4608,1765376] 1 [-94:702:1] 27664l3 [0,-1,0,-974272,370539264] 1 [642:3042:1]
27664m (1 curve)	0	2- 7+ 13- 19-	2- -1  0 7+  1 13-  2 19-
Curve Equation t 27664m1 [0,-1,0,-7768,-265744] 1
27664n (1 curve)	1	2- 7- 13+ 19+	2-  0 -1 7-  5 13+ -4 19+
Curve Equation t Generators 27664n1 [0,0,0,473677,488217714] 1 [2327:119126:1]
27664o (1 curve)	1	2- 7- 13+ 19+	2-  0  3 7- -3 13+  4 19+
Curve Equation t Generators 27664o1 [0,0,0,-1091,14082] 1 [23:34:1]
27664p (1 curve)	1	2- 7- 13+ 19+	2-  0 -4 7-  2 13+ -1 19+
Curve Equation t Generators 27664p1 [0,0,0,-257,1895] 1 [-2:49:1]
27664q (1 curve)	0	2- 7- 13+ 19-	2-  2 -2 7-  0 13+ -5 19-
Curve Equation t 27664q1 [0,-1,0,-14,-25] 1
27664r (2 curves)	0	2- 7- 13- 19+	2-  0  0 7- -4 13- -6 19+
Curve Equation t 27664r1 [0,0,0,-40,-93] 2 27664r2 [0,0,0,25,-366] 2
27664s (1 curve)	0	2- 7- 13- 19+	2-  2 -2 7-  4 13- -5 19+
Curve Equation t 27664s1 [0,-1,0,-4674,-138985] 1
27664t (1 curve)	1	2- 7- 13- 19-	2-  2  1 7- -3 13- -6 19-
Curve Equation t Generators 27664t1 [0,-1,0,0,-256] 1 [146:1758:1]

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