How many significant figures does 108700 have?

Answer 1

There are 4 significant figures.

This can be seen by writing the number in scientific notation:

108700 = 1.08700 x 10^5 = 1.087 x 10^5

Removing the two trailing zeros makes no difference to the value of the number in scientific notation, therefore they are not significant.

Answer 2

108700 has 6 significant figures.