Question

How many significant digits are in `2.404 * 10^6` `kg`?

Answer 1

`2.404xx10^6"` kg has four significant figures.

Explanation:

For a number written in scientific notation, the base 10 and exponent are not considered significant figures.

For the coefficient, 2.404, there are four significant figures (digits). All non-zero digits are significant and zeros that are between non-zero digits (captured zeros) are significant.