Remember that 1 kg (kilograms) equals 1000 g (grams). So doing a rule of three:
![\begin{gathered} 1\operatorname{kg}\to1000g \\ 413\text{ kg}\to?\text{ g} \end{gathered}]()
And the calculation would be:

But, in this case, we have to give the answer in scientific notation with three significant figures (4.13 x 10 ^?) After the four number, we have 5 numbers that complete the entire number, so in scientific notation, the answer would be:

The coefficient of scientific notation is 5 (4.13 x 10^5 g).