All nonzero numbers are significant (1, 3, and 7 are significant). Zeros in-between significant digits are significant (the first zero is significant). All zeros after the decimal point that aren't placeholders are significant (last zero is significant).
Trailing zeros in a number containing a decimal point are significant.
223.4016 rounded five significant figures is 223.40
4 significant figures.
23,410 has four significant figures.
5 significant figures
45.0300mm has six significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
101.01 has exactly five significant figures.
3.14159265358979 to five significant figures is 3.1416
Five significant figures.
Five significant figures.
Five significant figures.
It has five significant figures.
Five significant figures.
Five significant figures.
223.4016 rounded five significant figures is 223.40
4 significant figures.
23,410 has four significant figures.
1,200.1 has five significant figures.