# What is 306,000,0000 in a scientific notation?

Jun 10, 2016

$3.06 \times {10}^{9}$

#### Explanation:

The scientific notation format consists of expressing a number (normally a measurement) between 1 and 10 and then multipliying it by a whole number power of 10.

To decide on the number of digits included, find the number of significant figures present in the given number.

$3 , 06 {\underbrace{0 , 000 , 000}}_{\text{trailing zeros}}$
Note that the trailing zeros are not significant. This leaves your number with 3 significant figures.

This means three digits are needed in your scientific notation expression.

$\underbrace{3.06 \times {10}^{9}}$