Q: How is the number 381,529 written in Scientific Notation?

 A: 3.81529 x 105

Why is 381,529 written as 3.81529 x 105 in scientific notation?

The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.

Calculating scientific notation for a positive integer is simple, as it always follows this notation:

a x 10b

Follow the steps below to see how 381,529 is written in scientific notation.

Step 1

To find a, take the number and move a decimal place to the right one position.

  • Original Number: 381,529
  • New Number: 3.81529

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 3.81529
Decimal Count: 12345

There are 5 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 3.81529

b = 5

Now the whole thing:

3.81529 x 105

Step 4

Check your work:

105 = 100,000 x 3.81529 = 381,529


More Scientific Notation Examples

381,527381,528381,530381,531
3.81527 x 1053.81528 x 1053.8153 x 1053.81531 x 105

Explore more about the number 381,529:


Ask a Question