Q: How is the number 142,200,432 written in Scientific Notation?

 A: 1.42200432 x 108

Why is 142,200,432 written as 1.42200432 x 108 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 142,200,432 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: 142,200,432
  • New Number: 1.42200432

Step 2

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

New Number: 1.42200432
Decimal Count: 12345678

There are 8 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 = 1.42200432

b = 8

Now the whole thing:

1.42200432 x 108

Step 4

Check your work:

108 = 100,000,000 x 1.42200432 = 142,200,432


More Scientific Notation Examples

142,200,430142,200,431142,200,433142,200,434
1.4220043 x 1081.42200431 x 1081.42200433 x 1081.42200434 x 108

Explore more about the number 142,200,432:


Ask a Question