Elliptic curves over $\Q$ of conductor 15

Conductor	j-invariant	Rank	Torsion order	Torsion structure
Analytic order of Ш	$p$ div |Ш|	Maximal primes	Nonmax $p$	Bad $p$
Number of integral points	Regulator	CM	CM discriminant	Semistable
Curves per isogeny class	Cyclic isogeny degree	Isogeny class size	Isogeny class degree	Potential good reduction

Results (8 matches)

 

Curve		Isogeny class
LMFDB label	Cremona label	LMFDB label	Cremona label	Weierstrass coefficients	Rank	Torsion structure
15.a1	15a5	15.a	15a	$[1, 1, 1, -2160, -39540]$	$0$	$[2]$
15.a2	15a2	15.a	15a	$[1, 1, 1, -135, -660]$	$0$	$[2, 2]$
15.a3	15a6	15.a	15a	$[1, 1, 1, -110, -880]$	$0$	$[2]$
15.a4	15a7	15.a	15a	$[1, 1, 1, -80, 242]$	$0$	$[4]$
15.a5	15a1	15.a	15a	$[1, 1, 1, -10, -10]$	$0$	$[2, 4]$
15.a6	15a3	15.a	15a	$[1, 1, 1, -5, 2]$	$0$	$[2, 4]$
15.a7	15a8	15.a	15a	$[1, 1, 1, 0, 0]$	$0$	$[4]$
15.a8	15a4	15.a	15a	$[1, 1, 1, 35, -28]$	$0$	$[8]$