Q: How is the number 66,138 written in Scientific Notation?

 A: 6.6138 x 104

Why is 66,138 written as 6.6138 x 104 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 66,138 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: 66,138
  • New Number: 6.6138

Step 2

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

New Number: 6.6138
Decimal Count: 1234

There are 4 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 = 6.6138

b = 4

Now the whole thing:

6.6138 x 104

Step 4

Check your work:

104 = 10,000 x 6.6138 = 66,138


More Scientific Notation Examples

66,13666,13766,13966,140
6.6136 x 1046.6137 x 1046.6139 x 1046.614 x 104

Explore more about the number 66,138:


Ask a Question