Cremona's table of elliptic curves

27280 = 2⁴ · 5 · 11 · 31

Class	r	Atkin-Lehner	Eigenvalues
27280a (2 curves)	0	2+ 5+ 11- 31+	2+  0 5+  2 11-  0  0  4
Curve Equation t 27280a1 [0,0,0,-1598,24587] 2 27280a2 [0,0,0,-1543,26358] 2
27280b (1 curve)	0	2+ 5+ 11- 31+	2+  3 5+ -4 11- -6 -3 -5
Curve Equation t 27280b1 [0,0,0,692,-28132] 1
27280c (2 curves)	1	2+ 5+ 11- 31-	2+  0 5+  0 11- -6  2 -2
Curve Equation t Generators 27280c1 [0,0,0,-23,182] 2 [2:12:1] 27280c2 [0,0,0,-643,6258] 2 [3:66:1]
27280d (1 curve)	1	2+ 5+ 11- 31-	2+  0 5+ -3 11-  0  5 -2
Curve Equation t Generators 27280d1 [0,0,0,-468803,-123551198] 1 [951:17050:1]
27280e (2 curves)	1	2+ 5+ 11- 31-	2+ -2 5+  0 11-  0  0  4
Curve Equation t Generators 27280e1 [0,1,0,-499751,-60077876] 2 [-168:4378:1] 27280e2 [0,1,0,1769604,-452222420] 2 [81178:-8245963:8]
27280f (2 curves)	0	2+ 5- 11+ 31+	2+  2 5- -2 11+  6  2  0
Curve Equation t 27280f1 [0,-1,0,-1155,-14278] 2 27280f2 [0,-1,0,-2860,39600] 2
27280g (4 curves)	1	2+ 5- 11+ 31-	2+  0 5-  0 11+  2 -2 -8
Curve Equation t Generators 27280g1 [0,0,0,-122,511] 2 [27:130:1] 27280g2 [0,0,0,-247,-714] 4 [226:975:8] 27280g3 [0,0,0,853,-5334] 2 [285:4836:1] 27280g4 [0,0,0,-3347,-74494] 2 [18006:102635:216]
27280h (2 curves)	1	2+ 5- 11+ 31-	2+  2 5-  2 11+ -2 -6  4
Curve Equation t Generators 27280h1 [0,-1,0,-155,650] 2 [170:645:8] 27280h2 [0,-1,0,-780,-7600] 2 [80:660:1]
27280i (2 curves)	1	2+ 5- 11- 31+	2+ -2 5- -2 11-  6  2  4
Curve Equation t Generators 27280i1 [0,1,0,-115,-492] 2 [-204:44:27] 27280i2 [0,1,0,-1820,-30500] 2 [695:18300:1]
27280j (2 curves)	0	2+ 5- 11- 31-	2+  2 5- -2 11- -2 -6  0
Curve Equation t 27280j1 [0,-1,0,-115,-438] 2 27280j2 [0,-1,0,-140,-208] 2
27280k (2 curves)	0	2- 5+ 11+ 31+	2-  0 5+  4 11+ -2  6  2
Curve Equation t 27280k1 [0,0,0,-203,14202] 2 27280k2 [0,0,0,-10123,389178] 2
27280l (2 curves)	0	2- 5+ 11+ 31+	2-  2 5+  4 11+ -4 -4 -4
Curve Equation t 27280l1 [0,-1,0,824,11760] 2 27280l2 [0,-1,0,-5576,124400] 2
27280m (1 curve)	1	2- 5+ 11- 31+	2-  0 5+ -1 11- -4  1 -2
Curve Equation t Generators 27280m1 [0,0,0,-203,2298] 1 [-1:50:1]
27280n (2 curves)	1	2- 5+ 11- 31+	2-  2 5+ -4 11- -4  4  4
Curve Equation t Generators 27280n1 [0,-1,0,-15416,-938320] 2 [108036:72512:729] 27280n2 [0,-1,0,-265416,-52538320] 2 [596:792:1]
27280o (2 curves)	1	2- 5- 11+ 31+	2-  0 5- -2 11+  4  0  8
Curve Equation t Generators 27280o1 [0,0,0,-1292,-15949] 2 [-23:40:1] 27280o2 [0,0,0,-20047,-1092486] 2 [238:2760:1]
27280p (2 curves)	1	2- 5- 11+ 31+	2-  2 5-  4 11+  0 -4 -4
Curve Equation t Generators 27280p1 [0,-1,0,-29565,1882100] 2 [80:150:1] 27280p2 [0,-1,0,-82420,-6659268] 2 [4269:278250:1]
27280q (2 curves)	0	2- 5- 11- 31+	2-  0 5-  2 11-  0 -4  4
Curve Equation t 27280q1 [0,0,0,-212,1179] 2 27280q2 [0,0,0,-367,-774] 2

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