Q: How is the number 317,422,787 written in Scientific Notation?

 A: 3.17422787 x 108

Why is 317,422,787 written as 3.17422787 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 317,422,787 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: 317,422,787
  • New Number: 3.17422787

Step 2

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

New Number: 3.17422787
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 = 3.17422787

b = 8

Now the whole thing:

3.17422787 x 108

Step 4

Check your work:

108 = 100,000,000 x 3.17422787 = 317,422,787


More Scientific Notation Examples

317,422,785317,422,786317,422,788317,422,789
3.17422785 x 1083.17422786 x 1083.17422788 x 1083.17422789 x 108

Explore more about the number 317,422,787:


Ask a Question