How many sig figs in 821? (Significant figures in 821)

How many sig figs in 821?

Here we will count how many significant figures (sig figs) are in 821 and show you what the sig figs in 821 are. In addition, we will also use the significant figures we found to write 821 in Scientific Notation and E-notation.

The significant figures of any number, like 821, are digits greater than 0, zeros between digits that are greater than 0, and trailing zeros in a number with a decimal point. Leading zeros and trailing zeros in a number without a decimal point are not significant figures. Using these parameters, we found our answers:

What are the sigs figs of 821?
Answer: 8 2 1

How many sig figs in 821?
Answer: 3

Using the significant figures of 821, we can express 821 in Scientific Notation and E-notation:

Scientific Notation:
821 = 8.21 × 10²

E-notation:
821 = 8.21e+2

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