Q: How is the number 35,500,221 written in Scientific Notation?

 A: 3.5500221 x 107

Why is 35,500,221 written as 3.5500221 x 107 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 35,500,221 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: 35,500,221
  • New Number: 3.5500221

Step 2

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

New Number: 3.5500221
Decimal Count: 1234567

There are 7 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 = 3.5500221

b = 7

Now the whole thing:

3.5500221 x 107

Step 4

Check your work:

107 = 10,000,000 x 3.5500221 = 35,500,221


More Scientific Notation Examples

35,500,21935,500,22035,500,22235,500,223
3.5500219 x 1073.550022 x 1073.5500222 x 1073.5500223 x 107

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