In order to write a number in scientific notation, the number will be in the following format:
Where 'a' is a number greater than or equal 1 and lesser than 10.
The number 1340 has 4 digits, the greatest digit has a value of 1 thousand, so in order to put this number in scientific notation, let's divide and multiply it by 1000:
Now we have a number in scientific notation, because the first number is between 1 and 10.
So the answer is 1.34 * 10^3