How many significant figures are in 136,000 ml?

There are 3 sig figs

Explanation:

Sig figs are the amount of figures counting from the left side of the number until you reach the first zero. Starting from the left, I counted one, three, and six. That's 3 numbers, and therefore, that's how we got our answer. The only exception is when there is a decimal. Then all the numbers before the decimal, despite whether or not they're zeros, are sig figs.

3 significant figures

Explanation:

The significant figure is such that every number after it is zero. As such, when a number is given to be rounded to a x significant numbers, the count starts from the left with the first number on the left being the first significant number and others following through i.e the next being the second significant number.

However, to round off to x significant number, we consider the number in the x+1 position. If the number is up to 5, it will be rounded ( as well as every other numbers to the right) to zero but 1 will be added to the number in the x position.

Given the theory, 136,000 ml has 3 significant figures.