Q: How is the number 9,128 written in Scientific Notation?

 A: 9.128 x 103

Why is 9,128 written as 9.128 x 103 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 9,128 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: 9,128
  • New Number: 9.128

Step 2

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

New Number: 9.128
Decimal Count: 123

There are 3 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 = 9.128

b = 3

Now the whole thing:

9.128 x 103

Step 4

Check your work:

103 = 1,000 x 9.128 = 9,128


More Scientific Notation Examples

9,1269,1279,1299,130
9.126 x 1039.127 x 1039.129 x 1039.13 x 103

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