Q: How is the number 70,902,728 written in Scientific Notation?

 A: 7.0902728 x 107

Why is 70,902,728 written as 7.0902728 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 70,902,728 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: 70,902,728
  • New Number: 7.0902728

Step 2

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

New Number: 7.0902728
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 = 7.0902728

b = 7

Now the whole thing:

7.0902728 x 107

Step 4

Check your work:

107 = 10,000,000 x 7.0902728 = 70,902,728


More Scientific Notation Examples

70,902,72670,902,72770,902,72970,902,730
7.0902726 x 1077.0902727 x 1077.0902729 x 1077.090273 x 107

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