How many significant figures are in 1.30470
To determine the number of significant figures in a number, we need to count the digits from the first non-zero digit on the left to the rightmost digit. In this case, there are five digits: 1, 3, 0, 4, and 7.
However, there is a common rule in significant figures: trailing zeros are only significant if they appear after a decimal point. In this case, the zero at the end of the number does not follow a decimal point, so it is not considered significant.
Therefore, the number 1.30470 has five significant figures.