No, four.
12.5912
A significant figure is basically counting how many digits there are: In this case this number is to FOUR significant figures because there are FOUR digits. Here's some more examples: When you have zero's in front of the number, these do not count as digits: so, if you had 0.0034, you only count the 3 and 4 as digits so this would be to TWO significant figures. However, if you have 0.003404, you must count the zero in between the two four's because this is part of the number - there are FOUR significant figures here.
Three. The two zeros on the end are just placeholders. 30900 has 3 significant figures.
There are seven significant figures; the first 1 is significant, the 2501 is obvious, but the last two are also significant because they are specifying the exactness of the number.
The number 1.84 x 103 has three significant figures, 1.84. The 103 part of the number does not count when determining significant figures.
3,456.5 to two significant figures is 3,500.
This number has two significant figures.
Two significant figures.
Two significant figures.
There are two significant figures.
There are two significant figures in 0.025.
It is: 690 to two significant figures
There are two significant figures in the number 12.
All four figures are significant in 8,807.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
72 is 72.2 rounded to two significant figures.
There are 2 significant digits in the number.