To write this in standard form, we need to look at the power of 10. In this case, it's a 7. Then, we need to shift the decimal point 7 places to the right:
[tex]1.304\cdot10^7=13,040,000[/tex]We can see that behind the 1 (where was the decimal point before) now there are 7 numbers, then what we do is correct.
