Q: How is the number 90,259,749 written in Scientific Notation?

 A: 9.0259749 x 107

Why is 90,259,749 written as 9.0259749 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 90,259,749 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: 90,259,749
  • New Number: 9.0259749

Step 2

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

New Number: 9.0259749
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 = 9.0259749

b = 7

Now the whole thing:

9.0259749 x 107

Step 4

Check your work:

107 = 10,000,000 x 9.0259749 = 90,259,749


More Scientific Notation Examples

90,259,74790,259,74890,259,75090,259,751
9.0259747 x 1079.0259748 x 1079.025975 x 1079.0259751 x 107

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