Q: How is the number 1,105 written in Scientific Notation?

 A: 1.105 x 103

Why is 1,105 written as 1.105 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 1,105 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: 1,105
  • New Number: 1.105

Step 2

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

New Number: 1.105
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 = 1.105

b = 3

Now the whole thing:

1.105 x 103

Step 4

Check your work:

103 = 1,000 x 1.105 = 1,105


More Scientific Notation Examples

1,1031,1041,1061,107
1.103 x 1031.104 x 1031.106 x 1031.107 x 103

Explore more about the number 1,105:


Ask a Question