A whole number, not a fraction, that can be negative, positive or zero are integers. They cannot have decimal places.
Now, converting 0.000431 L to decimal an integer as:
[tex]0.000431 L = 431\times 10^{-6} L[/tex]
Since, [tex]1 L = 10^{6} \mu L[/tex]
So, [tex]431\times 10^{-6} L\times \frac{10^{6 \mu L}}{1 L} = 431 \mu L[/tex].
Hence, the integer value for 0.000431 L is [tex]431 \mu L[[/tex].
