Q: How is the number 636,251,401 written in Scientific Notation?

 A: 6.36251401 x 108

Why is 636,251,401 written as 6.36251401 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 636,251,401 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: 636,251,401
  • New Number: 6.36251401

Step 2

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

New Number: 6.36251401
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 = 6.36251401

b = 8

Now the whole thing:

6.36251401 x 108

Step 4

Check your work:

108 = 100,000,000 x 6.36251401 = 636,251,401


More Scientific Notation Examples

636,251,399636,251,400636,251,402636,251,403
6.36251399 x 1086.362514 x 1086.36251402 x 1086.36251403 x 108

Explore more about the number 636,251,401:


Ask a Question