Q: How is the number 206,646 written in Scientific Notation?

 A: 2.06646 x 105

Why is 206,646 written as 2.06646 x 105 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 206,646 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: 206,646
  • New Number: 2.06646

Step 2

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

New Number: 2.06646
Decimal Count: 12345

There are 5 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 = 2.06646

b = 5

Now the whole thing:

2.06646 x 105

Step 4

Check your work:

105 = 100,000 x 2.06646 = 206,646


More Scientific Notation Examples

206,644206,645206,647206,648
2.06644 x 1052.06645 x 1052.06647 x 1052.06648 x 105

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