1 significant figure.
1 significant figure.
At least 1 and at most 7. It could be 3,999,999.9 rounded to 7 significant figures; It could be 3,999,999 rounded to 6 significant figures; It could be 4,000,015 rounded to 5 significant figures; It could be 4,000,429 rounded to 4 significant figures; It could be 3,999,999 rounded to 3 significant figures; It could be 4,049,999 rounded to 2 significant figures; It could be 4,492,467 rounded to 1 significant figure.
4000000
Just the one and it is 4
How many significant figures are in 20.8
One - the zeros are placeholders unless indicated.
Without the decimal point, there is only a significant figure.
There are 3 significant figures in 94.2.
There are four significant figures in 0.1111.
There are four significant figures in 0.005120.
101330 has 6 significant figures.
4487 has four significant figures.