Q: How is the number 73,243,318 written in Scientific Notation?

 A: 7.3243318 x 107

Why is 73,243,318 written as 7.3243318 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 73,243,318 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: 73,243,318
  • New Number: 7.3243318

Step 2

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

New Number: 7.3243318
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 = 7.3243318

b = 7

Now the whole thing:

7.3243318 x 107

Step 4

Check your work:

107 = 10,000,000 x 7.3243318 = 73,243,318


More Scientific Notation Examples

73,243,31673,243,31773,243,31973,243,320
7.3243316 x 1077.3243317 x 1077.3243319 x 1077.324332 x 107

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