how many significant digits are in the following
2,546m
There are 4 significant figures.
` 111111111111111 bn
To determine the number of significant digits in a given number, we follow these rules:
1. Non-zero digits are always significant.
2. Any zeros between non-zero digits are significant.
3. Leading zeros (zeros before the first non-zero digit) are not significant.
4. Trailing zeros (zeros after the last non-zero digit) are significant if there is a decimal point.
Now, applying these rules to the number 2,546m:
- There are four non-zero digits (2, 5, 4, 6), so these are all significant.
- There are no zeros between non-zero digits.
- There are no leading zeros.
- There is no decimal point mentioned, so any trailing zeros are not considered significant.
Based on these rules, the number 2,546m has four significant digits.