# Q: How is the number 313,243,432 written in Scientific Notation?

A: 3.13243432 x 108

## Why is 313,243,432 written as 3.13243432 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 313,243,432 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: 313,243,432
• New Number: 3.13243432

### Step 2

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

 New Number: 3 . 1 3 2 4 3 4 3 2 Decimal Count: 1 2 3 4 5 6 7 8

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 = 3.13243432

b = 8

Now the whole thing:

3.13243432 x 108

### Step 4

108 = 100,000,000 x 3.13243432 = 313,243,432

### More Scientific Notation Examples

 313,243,430 313,243,431 313,243,433 313,243,434 3.1324343 x 108 3.13243431 x 108 3.13243433 x 108 3.13243434 x 108

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