3 there is 4, 5, and the 0 in between. The two trailing zeros are not measured as significant figures unless there is a decimal point or further significant figures (40505 has 5 sig figs, 40500.0 has 6 4.05x10^3 has 3 etc.)
Chat with our AI personalities
3 significant figures.
Five. All nonzero digits are significant and zeros in between significant digits are significant.
This number has seven significant digits.
Three significant digits.
There are five significant digits.