Q: How is the number 6,440,642 written in Scientific Notation?

 A: 6.440642 x 106

Why is 6,440,642 written as 6.440642 x 106 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 6,440,642 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: 6,440,642
  • New Number: 6.440642

Step 2

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

New Number: 6.440642
Decimal Count: 123456

There are 6 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 = 6.440642

b = 6

Now the whole thing:

6.440642 x 106

Step 4

Check your work:

106 = 1,000,000 x 6.440642 = 6,440,642


More Scientific Notation Examples

6,440,6406,440,6416,440,6436,440,644
6.44064 x 1066.440641 x 1066.440643 x 1066.440644 x 106

Explore more about the number 6,440,642:


Ask a Question