Q: How is the number 202,254,787 written in Scientific Notation?

 A: 2.02254787 x 108

Why is 202,254,787 written as 2.02254787 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 202,254,787 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: 202,254,787
  • New Number: 2.02254787

Step 2

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

New Number: 2.02254787
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 = 2.02254787

b = 8

Now the whole thing:

2.02254787 x 108

Step 4

Check your work:

108 = 100,000,000 x 2.02254787 = 202,254,787


More Scientific Notation Examples

202,254,785202,254,786202,254,788202,254,789
2.02254785 x 1082.02254786 x 1082.02254788 x 1082.02254789 x 108

Explore more about the number 202,254,787:


Ask a Question