4 hundred quadrillonth?

[rustom]

On May 22, 6:56 am, AggieDan04 <danb... at yahoo.com> wrote:
> The error in this example is roughly equivalent to the width of a red
> blood cell compared to the distance between Earth and the sun.  There
> are very few applications that need more accuracy than that.

For a mathematician there are no inexact numbers; for a physicist no
exact ones.
Our education system is on the math side; reality it seems is on the
other.