Q: How is the number 4,245 written in Scientific Notation?

 A: 4.245 x 103

Why is 4,245 written as 4.245 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 4,245 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: 4,245
  • New Number: 4.245

Step 2

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

New Number: 4.245
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 = 4.245

b = 3

Now the whole thing:

4.245 x 103

Step 4

Check your work:

103 = 1,000 x 4.245 = 4,245


More Scientific Notation Examples

4,2434,2444,2464,247
4.243 x 1034.244 x 1034.246 x 1034.247 x 103

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