# If converting 5.15 days to seconds = 444960 seconds, what is 444960 in sigfig terms?

##### 2 Answers

#### Answer:

#### Explanation:

5 significant figures or

#### Answer:

The answer should be rounded to three significant figures.

#### Explanation:

To get from days to seconds, you used a series of conversion factors.

More specifically, you wrote

#5.15color(red)(cancel(color(black)("days"))) * (24color(red)cancel(color(black)("hr")))/(1color(red)(cancel(color(black)("day")))) * (60color(red)(cancel(color(black)("min"))))/(1color(red)(cancel(color(black)("hr")))) * "60 sec"/(1color(red)(cancel(color(black)("min")))) = "444960 sec"#

Now, the final result must have the same number of significant figures that you started with.

All those conversion factors are *exact numbers*, which means that you can consider them to have an infinite number of significant figures.

Simply put, you started with **three** sig figs in **three** sig figs in

The way it is written now, the answer has **five** sig figs, which means that you will need to round it to three sig figs.

The answer will thus be

#"5.15 days" = color(green)("445,000 sec")#

You can also express the answer in scientific notation if you want

#"5.15 days" = 4.45 * 10^5"sec"#