Cremona's table of elliptic curves

21896 = 2³ · 7 · 17 · 23

Class	r	Atkin-Lehner	Eigenvalues
21896a (2 curves)	1	2- 7+ 17- 23+	2-  0  2 7+ -4  2 17- -4
Curve Equation t Generators 21896a1 [0,0,0,-21839,569970] 2 [-7:850:1] 21896a2 [0,0,0,76421,4284198] 2 [571:15300:1]
21896b (1 curve)	2	2- 7- 17+ 23-	2- -1 -4 7-  0  1 17+ -8
Curve Equation t Generators 21896b1 [0,-1,0,-40,161] 1 [4:7:1]&[8:17:1]
21896c (2 curves)	0	2- 7- 17+ 23-	2- -2 -2 7-  2  0 17+ -4
Curve Equation t 21896c1 [0,1,0,-824,-7424] 2 21896c2 [0,1,0,-12384,-534560] 2
21896d (4 curves)	0	2- 7- 17- 23+	2-  0 -2 7-  4  6 17- -8
Curve Equation t 21896d1 [0,0,0,-3071,75010] 4 21896d2 [0,0,0,-51091,4444830] 4 21896d3 [0,0,0,-53051,4085366] 2 21896d4 [0,0,0,-817451,284472774] 2

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

Part of Computational Number Theory
Back to Tables and computations