Q: How is the number 32,420,644 written in Scientific Notation?

 A: 3.2420644 x 107

Why is 32,420,644 written as 3.2420644 x 107 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 32,420,644 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: 32,420,644
  • New Number: 3.2420644

Step 2

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

New Number: 3.2420644
Decimal Count: 1234567

There are 7 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 = 3.2420644

b = 7

Now the whole thing:

3.2420644 x 107

Step 4

Check your work:

107 = 10,000,000 x 3.2420644 = 32,420,644


More Scientific Notation Examples

32,420,64232,420,64332,420,64532,420,646
3.2420642 x 1073.2420643 x 1073.2420645 x 1073.2420646 x 107

Explore more about the number 32,420,644:


Ask a Question