Q: How is the number 140,432,418 written in Scientific Notation?

 A: 1.40432418 x 108

Why is 140,432,418 written as 1.40432418 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 140,432,418 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: 140,432,418
  • New Number: 1.40432418

Step 2

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

New Number: 1.40432418
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 = 1.40432418

b = 8

Now the whole thing:

1.40432418 x 108

Step 4

Check your work:

108 = 100,000,000 x 1.40432418 = 140,432,418


More Scientific Notation Examples

140,432,416140,432,417140,432,419140,432,420
1.40432416 x 1081.40432417 x 1081.40432419 x 1081.4043242 x 108

Explore more about the number 140,432,418:


Ask a Question