Q: How is the number 64,744,738 written in Scientific Notation?

 A: 6.4744738 x 107

Why is 64,744,738 written as 6.4744738 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 64,744,738 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: 64,744,738
  • New Number: 6.4744738

Step 2

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

New Number: 6.4744738
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 = 6.4744738

b = 7

Now the whole thing:

6.4744738 x 107

Step 4

Check your work:

107 = 10,000,000 x 6.4744738 = 64,744,738


More Scientific Notation Examples

64,744,73664,744,73764,744,73964,744,740
6.4744736 x 1076.4744737 x 1076.4744739 x 1076.474474 x 107

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