Q: How is the number 84,038,615 written in Scientific Notation?

 A: 8.4038615 x 107

Why is 84,038,615 written as 8.4038615 x 107 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 84,038,615 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: 84,038,615
  • New Number: 8.4038615

Step 2

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

New Number: 8.4038615
Decimal Count: 1234567

There are 7 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 = 8.4038615

b = 7

Now the whole thing:

8.4038615 x 107

Step 4

Check your work:

107 = 10,000,000 x 8.4038615 = 84,038,615


More Scientific Notation Examples

84,038,61384,038,61484,038,61684,038,617
8.4038613 x 1078.4038614 x 1078.4038616 x 1078.4038617 x 107

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