# Q: How is the number 515,432 written in Scientific Notation?

A: 5.15432 x 105

## Why is 515,432 written as 5.15432 x 105 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 515,432 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: 515,432
• New Number: 5.15432

### Step 2

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

 New Number: 5 . 1 5 4 3 2 Decimal Count: 1 2 3 4 5

There are 5 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 = 5.15432

b = 5

Now the whole thing:

5.15432 x 105

### Step 4

105 = 100,000 x 5.15432 = 515,432

### More Scientific Notation Examples

 515,430 515,431 515,433 515,434 5.1543 x 105 5.15431 x 105 5.15433 x 105 5.15434 x 105

### Explore more about the number 515,432:

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