Q: How is the number 405,014,701 written in Scientific Notation?

 A: 4.05014701 x 108

Why is 405,014,701 written as 4.05014701 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 405,014,701 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: 405,014,701
  • New Number: 4.05014701

Step 2

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

New Number: 4.05014701
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 = 4.05014701

b = 8

Now the whole thing:

4.05014701 x 108

Step 4

Check your work:

108 = 100,000,000 x 4.05014701 = 405,014,701


More Scientific Notation Examples

405,014,699405,014,700405,014,702405,014,703
4.05014699 x 1084.050147 x 1084.05014702 x 1084.05014703 x 108

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