How many significant figures does the following value have?

Answer 1

Exact numbers have an unlimited number of significant figures. For example with numbers like one dozen it is exactly 12.0000000000 with the zeroes repeating forever because numbers such as one dozen are defined as precisely 12 things. Just as one dollar is exactly 100 pennies and so on.

Answer 2

To determine the number of significant figures, count the digits in the value, excluding any leading zeros. All non-zero digits are considered significant. For example, the value 0.0052 has two significant figures.

Answer 3

5