Q: How is the number 123,667,940 written in Scientific Notation?

 A: 1.2366794 x 108

Why is 123,667,940 written as 1.2366794 x 108 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 123,667,940 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: 123,667,940
  • New Number: 1.23667940

Step 2

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

New Number: 1.23667940
Decimal Count: 12345678

There are 8 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 = 1.2366794 (Please notice any zeroes on the end have been removed)

b = 8

Now the whole thing:

1.2366794 x 108

Step 4

Check your work:

108 = 100,000,000 x 1.2366794 = 123,667,940


More Scientific Notation Examples

123,667,938123,667,939123,667,941123,667,942
1.23667938 x 1081.23667939 x 1081.23667941 x 1081.23667942 x 108

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