Q: How is the number 20,018,199 written in Scientific Notation?

 A: 2.0018199 x 107

Why is 20,018,199 written as 2.0018199 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 20,018,199 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: 20,018,199
  • New Number: 2.0018199

Step 2

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

New Number: 2.0018199
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 = 2.0018199

b = 7

Now the whole thing:

2.0018199 x 107

Step 4

Check your work:

107 = 10,000,000 x 2.0018199 = 20,018,199


More Scientific Notation Examples

20,018,19720,018,19820,018,20020,018,201
2.0018197 x 1072.0018198 x 1072.00182 x 1072.0018201 x 107

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