Q: How is the number 25,105,356 written in Scientific Notation?

 A: 2.5105356 x 107

Why is 25,105,356 written as 2.5105356 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 25,105,356 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: 25,105,356
  • New Number: 2.5105356

Step 2

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

New Number: 2.5105356
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 = 2.5105356

b = 7

Now the whole thing:

2.5105356 x 107

Step 4

Check your work:

107 = 10,000,000 x 2.5105356 = 25,105,356


More Scientific Notation Examples

25,105,35425,105,35525,105,35725,105,358
2.5105354 x 1072.5105355 x 1072.5105357 x 1072.5105358 x 107

Explore more about the number 25,105,356:


Ask a Question