Q: How is the number 126,405,136 written in Scientific Notation?

 A: 1.26405136 x 108

Why is 126,405,136 written as 1.26405136 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 126,405,136 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: 126,405,136
  • New Number: 1.26405136

Step 2

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

New Number: 1.26405136
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 = 1.26405136

b = 8

Now the whole thing:

1.26405136 x 108

Step 4

Check your work:

108 = 100,000,000 x 1.26405136 = 126,405,136


More Scientific Notation Examples

126,405,134126,405,135126,405,137126,405,138
1.26405134 x 1081.26405135 x 1081.26405137 x 1081.26405138 x 108

Explore more about the number 126,405,136:


Ask a Question