Q: How is the number 25,207,631 written in Scientific Notation?

 A: 2.5207631 x 107

Why is 25,207,631 written as 2.5207631 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 25,207,631 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: 25,207,631
  • New Number: 2.5207631

Step 2

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

New Number: 2.5207631
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 = 2.5207631

b = 7

Now the whole thing:

2.5207631 x 107

Step 4

Check your work:

107 = 10,000,000 x 2.5207631 = 25,207,631


More Scientific Notation Examples

25,207,62925,207,63025,207,63225,207,633
2.5207629 x 1072.520763 x 1072.5207632 x 1072.5207633 x 107

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