3 significant figures.
There are 2 significant figures in this number.
There are 4 significant figures in this number.
There are 3 significant figures in this number.
There are 3 significant figures in this number.
The number 3400 has two significant figures. The rules for significant figures can be found by using the link to our friends at Wikipedia.
Three significant figures are in this number.
3 significant figures.
There are 4 significant figures in this number.
There are 2 significant figures in this number.
There are 4 significant figures in this number.
There are 3 significant figures in this number.
There are 3 significant figures in this number.
There are six significant figures in this number (i.e. all the figures here are significant).
There are 3 significant figures in this number.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
There are 3 significant figures in this number.