Q: How is the number 77,627,724 written in Scientific Notation?

 A: 7.7627724 x 107

Why is 77,627,724 written as 7.7627724 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 77,627,724 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: 77,627,724
  • New Number: 7.7627724

Step 2

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

New Number: 7.7627724
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 = 7.7627724

b = 7

Now the whole thing:

7.7627724 x 107

Step 4

Check your work:

107 = 10,000,000 x 7.7627724 = 77,627,724


More Scientific Notation Examples

77,627,72277,627,72377,627,72577,627,726
7.7627722 x 1077.7627723 x 1077.7627725 x 1077.7627726 x 107

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