# How do you write 25,000,000,000,000 in scientific notation?

Jan 10, 2016

$2.5 \times {10}^{13}$

#### Explanation:

A number expressed in scientific notation must be written in the following form:

$a \times {10}^{n}$

where 1≤ a < 10 and n is an integer

now place the decimal point so that it makes the number between 1 and 10 ie. 2.5

To get the number back into it's original form we require to move the decimal point 13 places to the right .

we require to multiply it by ${10}^{13}$

Hence in scientific notation the number is $2.5 \times {10}^{13}$