Q: How is the number 420,326 written in Scientific Notation?

 A: 4.20326 x 105

Why is 420,326 written as 4.20326 x 105 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 420,326 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: 420,326
  • New Number: 4.20326

Step 2

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

New Number: 4.20326
Decimal Count: 12345

There are 5 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 = 4.20326

b = 5

Now the whole thing:

4.20326 x 105

Step 4

Check your work:

105 = 100,000 x 4.20326 = 420,326


More Scientific Notation Examples

420,324420,325420,327420,328
4.20324 x 1054.20325 x 1054.20327 x 1054.20328 x 105

Explore more about the number 420,326:


Ask a Question