Cremona's table of elliptic curves

28548 = 2² · 3² · 13 · 61

Class	r	Atkin-Lehner	Eigenvalues
28548a (2 curves)	0	2- 3+ 13- 61-	2- 3+  4  0  2 13-  6  0
Curve Equation t 28548a1 [0,0,0,972,-17955] 2 28548a2 [0,0,0,-7263,-190890] 2
28548b (2 curves)	2	2- 3+ 13- 61-	2- 3+ -4  0 -2 13- -6  0
Curve Equation t Generators 28548b1 [0,0,0,108,665] 2 [-4:13:1]&[-2:21:1] 28548b2 [0,0,0,-807,7070] 2 [-29:78:1]&[-17:126:1]
28548c (2 curves)	0	2- 3- 13+ 61-	2- 3-  2  4  4 13+ -2 -6
Curve Equation t 28548c1 [0,0,0,-4944,-4943] 2 28548c2 [0,0,0,19761,-39530] 2
28548d (2 curves)	0	2- 3- 13+ 61-	2- 3- -2  2  6 13+  2  2
Curve Equation t 28548d1 [0,0,0,-1102716,-445545279] 2 28548d2 [0,0,0,-935271,-585495810] 2
28548e (2 curves)	0	2- 3- 13- 61+	2- 3-  0  2  4 13-  2  6
Curve Equation t 28548e1 [0,0,0,-151680,22599601] 2 28548e2 [0,0,0,-250095,-10330058] 2
28548f (2 curves)	0	2- 3- 13- 61+	2- 3-  2  4 -4 13-  6 -4
Curve Equation t 28548f1 [0,0,0,-144,405] 2 28548f2 [0,0,0,441,2862] 2
28548g (2 curves)	0	2- 3- 13- 61+	2- 3- -2 -2 -2 13- -2  4
Curve Equation t 28548g1 [0,0,0,-639876,194075165] 2 28548g2 [0,0,0,-23871,551974070] 2
28548h (1 curve)	1	2- 3- 13- 61-	2- 3- -1 -3 -2 13-  3 -6
Curve Equation t Generators 28548h1 [0,0,0,-48,3044] 1 [4:-54:1]

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

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