How many sig figs in 45? (Significant figures in 45)

How many sig figs in 45?

Here we will count how many significant figures (sig figs) are in 45 and show you what the sig figs in 45 are. In addition, we will also use the significant figures we found to write 45 in Scientific Notation and E-notation.

The significant figures of any number, like 45, 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 45?
Answer: 4 5

How many sig figs in 45?
Answer: 2

Using the significant figures of 45, we can express 45 in Scientific Notation and E-notation:

Scientific Notation:
45 = 4.5 × 10¹

E-notation:
45 = 4.5e+1

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