Q: How is the number 140,821,727 written in Scientific Notation?

 A: 1.40821727 x 108

Why is 140,821,727 written as 1.40821727 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 140,821,727 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: 140,821,727
  • New Number: 1.40821727

Step 2

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

New Number: 1.40821727
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 = 1.40821727

b = 8

Now the whole thing:

1.40821727 x 108

Step 4

Check your work:

108 = 100,000,000 x 1.40821727 = 140,821,727


More Scientific Notation Examples

140,821,725140,821,726140,821,728140,821,729
1.40821725 x 1081.40821726 x 1081.40821728 x 1081.40821729 x 108

Explore more about the number 140,821,727:


Ask a Question