# How do you write 1,783,980,000 in scientific notation?

Mar 26, 2018

$1.78398 \cdot {10}^{9}$

#### Explanation:

When using scientific notation we want to keep the all the non-zero numbers that come before the string of zeroes, which are 178398.

The decimal goes between the first and second number:
1.78398

To get back to the original number we have to multiply 1.78398 by 1,000,000,000 or in other terms:

$1.78398 \cdot {10}^{9}$