Question 108814
Here we wish to write the number {{{0.000347}}} as a coefficient times {{{10}}} raised to an exponent. 

To convert to scientific notation, start by moving the decimal place in the number {{{until}}} you have a number {{{between }}}{{{1}}} and {{{10}}}; here it is {{{3.47}}}. 

The number of places to the {{{left}}} that you had to move the decimal point {{{is- the- exponent}}}. 

Here, we had to move the decimal {{{4}}} places to the {{{right}}}, so the exponent is {{{-4}}}.  If we have to move the decimal point to the {{{left}}}, then we will have a {{{positive}}} number as an exponent.

So, we have:

{{{0.000347 = 3.47*10^-4}}}