Calculate each of the following. Your answer must be a number. No arithmetic operations are allowed in your answer. Please give 7 places after your decimal point if you use scientific notation.

$\displaystyle \frac{310 !}{40 ! 270 !} =$ .

$\displaystyle \frac{210 !}{200 ! 60 !} =$ .

$\displaystyle \frac{607 ! - 605 !}{603 !} =$ .