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How many significant numbers are there in 546?
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1
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2
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3
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4
That's Correct!
It's Wrong!
The number 546 has three significant figures. In determining the significant figures in a number, the following rules apply:
Non-zero digits are always significant.
Any zeros between non-zero digits are also significant.
Leading zeros (zeros to the left of the first non-zero digit) are not significant.
Trailing zeros in a decimal number (zeros to the right of the last non-zero digit in a decimal) are significant.
In 546:
The digit 5 is non-zero and significant.
The digit 4 is non-zero and significant.
The digit 6 is non-zero and significant.
Therefore, 546 has three significant figures. Leading zeros (if any) are not counted, and in this case, there are no leading zeros.
