Q: How is the number 425,215,409 written in Scientific Notation?

 A: 4.25215409 x 108

Why is 425,215,409 written as 4.25215409 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 425,215,409 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: 425,215,409
  • New Number: 4.25215409

Step 2

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

New Number: 4.25215409
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 = 4.25215409

b = 8

Now the whole thing:

4.25215409 x 108

Step 4

Check your work:

108 = 100,000,000 x 4.25215409 = 425,215,409


More Scientific Notation Examples

425,215,407425,215,408425,215,410425,215,411
4.25215407 x 1084.25215408 x 1084.2521541 x 1084.25215411 x 108

Explore more about the number 425,215,409:


Ask a Question